diff --git a/backend/roomroot-admin/src/main/java/com/roomroot/web/controller/jwgl/JYSController.java b/backend/roomroot-admin/src/main/java/com/roomroot/web/controller/jwgl/JYSController.java
index ccc78900..fb76d9d9 100644
--- a/backend/roomroot-admin/src/main/java/com/roomroot/web/controller/jwgl/JYSController.java
+++ b/backend/roomroot-admin/src/main/java/com/roomroot/web/controller/jwgl/JYSController.java
@@ -32,6 +32,7 @@ import com.roomroot.jwgl.vo.faculty.TeacherListVO;
 import com.roomroot.jwgl.vo.jys.ElectiveCourseVO;
 import jakarta.annotation.Resource;
 import jakarta.servlet.http.HttpServletResponse;
+import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
@@ -68,6 +69,7 @@ public class JYSController {
     /**
      * 新增教研室
      */
+    @PreAuthorize("@ss.hasPermi('teach:office:list')")
     @PostMapping("/office/add")
     public Result<Void> addOffice(@RequestBody JYSB entity,
                                   @RequestParam(required = false) Boolean syncDept) {
@@ -82,6 +84,7 @@ public class JYSController {
      * 001	001	军事基础教研室	军基	基础部
      * @param jysdh 教研室代号
      */
+    @PreAuthorize("@ss.hasPermi('teach:office:list')")
     @PostMapping("/office/disable")
     public Result<Void> disableOffice(@RequestParam("jysdh") String jysdh,
                                       @RequestParam(required = false) Boolean syncDept) {
@@ -92,6 +95,7 @@ public class JYSController {
     /**
      * 更新教研室
      */
+    @PreAuthorize("@ss.hasPermi('teach:office:list')")
     @PostMapping("/office/update")
     public Result<Void> updateOffice(@RequestBody JYSB entity,
                                      @RequestParam(required = false) Boolean syncDeptName) {
@@ -102,6 +106,7 @@ public class JYSController {
     /**
      * 单个教研室补建/对齐组织部门（幂等：已关联则直接返回部门编号）。
      */
+    @PreAuthorize("@ss.hasPermi('teach:office:list')")
     @PostMapping("/office/sync-dept")
     public Result<Long> syncOfficeDept(@RequestParam("jysdh") String jysdh) {
         JYSB entity = facultyService.getJYSBById(jysdh);
@@ -115,6 +120,7 @@ public class JYSController {
      * 对齐组织部门：为教研室批量创建/复用组织部门（直接执行，幂等）。
      * body：{ "ids": ["JYS01", ...] }；ids 不传 = 全部教研室。
      */
+    @PreAuthorize("@ss.hasPermi('teach:office:list')")
     @PostMapping("/org/align-dept")
     public Result<com.roomroot.jwgl.vo.orgsync.OrgAlignResultVO> alignDepts(
             @RequestBody(required = false) java.util.Map<String, List<String>> body) {
@@ -127,6 +133,7 @@ public class JYSController {
      *
      * @param jysdh 教研室代号
      */
+    @PreAuthorize("@ss.hasPermi('teach:office:list')")
     @GetMapping("/office/get")
     public Result<JYSB> getOffice(@RequestParam("jysdh") String jysdh) {
         JYSB entity = facultyService.getJYSBById(jysdh);
@@ -143,6 +150,7 @@ public class JYSController {
      * </ul>
      * </p>
      */
+    @PreAuthorize("@ss.hasPermi('teach:office:list')")
     @GetMapping("/office/list")
     public Result<PageResult<JYSB>> listOffice(
             @RequestParam(defaultValue = "1") Integer pageNum,
@@ -172,6 +180,7 @@ public class JYSController {
      * 未填写时返回"XX未填写"；序号、停用、虚实类型等非空字段由后台自动填充。
      * </p>
      */
+    @PreAuthorize("@ss.hasPermi('teach:office:list')")
     @PostMapping("/office/import")
     public Result<Integer> importOffice(@RequestParam("file") MultipartFile file,
                                         @RequestParam(required = false) Boolean syncDept) throws Exception {
@@ -184,6 +193,7 @@ public class JYSController {
      * 新增教员（同时写入教员表和教员属性表）
      * <p>教员属性中的非空字段由前端一并传入。</p>
      */
+    @PreAuthorize("@ss.hasPermi('teach:teacher:list')")
     @PostMapping("/teacher/add")
     public Result<Void> addTeacher(@RequestBody AddTeacherDTO dto) {
         facultyService.addJYB(dto);
@@ -195,6 +205,7 @@ public class JYSController {
      *
      * @param jybh 教员编号
      */
+    @PreAuthorize("@ss.hasPermi('teach:teacher:list')")
     @PostMapping("/teacher/disable")
     public Result<Void> disableTeacher(@RequestParam("jybh") String jybh) {
         facultyService.disableJYB(jybh);
@@ -204,6 +215,7 @@ public class JYSController {
     /**
      * 单个教员补建/对齐系统账号（幂等：已有账号直接返回用户编号）。
      */
+    @PreAuthorize("@ss.hasPermi('teach:teacher:list')")
     @PostMapping("/teacher/sync-user")
     public Result<Long> syncTeacherUser(@RequestParam("jybh") String jybh,
                                         @RequestParam(required = false) String loginName,
@@ -220,6 +232,7 @@ public class JYSController {
      * 对齐到用户表：为无账号教员批量建账号（直接执行，幂等，逐条返回明细）。
      * body：{ "ids": ["JY01", ...] }；ids 不传 = 全部无账号教员。
      */
+    @PreAuthorize("@ss.hasPermi('teach:teacher:list')")
     @PostMapping("/teacher/align-user")
     public Result<com.roomroot.jwgl.vo.orgsync.OrgAlignResultVO> alignUsers(
             @RequestBody(required = false) java.util.Map<String, List<String>> body) {
@@ -230,6 +243,7 @@ public class JYSController {
     /**
      * 一键对齐：先对齐组织部门、再对齐用户账号（同一事务，幂等）。
      */
+    @PreAuthorize("@ss.hasPermi('teach:office:list') and @ss.hasPermi('teach:teacher:list')")
     @PostMapping("/org/align-apply")
     public Result<java.util.Map<String, com.roomroot.jwgl.vo.orgsync.OrgAlignResultVO>> alignApply() {
         java.util.Map<String, com.roomroot.jwgl.vo.orgsync.OrgAlignResultVO> result =
@@ -243,6 +257,7 @@ public class JYSController {
      * 更新教员基本信息
      * <p>支持教学单位调整（修改教研室代号）、职称调整（修改职称、专业技术职务等级）。</p>
      */
+    @PreAuthorize("@ss.hasPermi('teach:teacher:list')")
     @PostMapping("/teacher/update")
     public Result<Void> updateTeacher(@RequestBody JYB entity) {
         facultyService.updateJYB(entity);
@@ -254,6 +269,7 @@ public class JYSController {
      *
      * @param jybh 教员编号
      */
+    @PreAuthorize("@ss.hasPermi('teach:teacher:list')")
     @GetMapping("/teacher/get")
     public Result<JYB> getTeacher(@RequestParam("jybh") String jybh) {
         JYB entity = facultyService.getJYBById(jybh);
@@ -272,6 +288,7 @@ public class JYSController {
      * </ul>
      * </p>
      */
+    @PreAuthorize("@ss.hasPermi('teach:teacher:list')")
     @GetMapping("/teacher/list")
     public Result<PageResult<TeacherListVO>> listTeacher(
             @RequestParam(defaultValue = "1") Integer pageNum,
@@ -297,6 +314,7 @@ public class JYSController {
      * <p>表头顺序：教员编号, 教员姓名, 教研室代号, 职称, 专业技术职务等级, 教员类别,
      * 性别, 手机号, 身份证号, 备注, 序号, 虚实类型。教员编号不填自动创建，离职状态默认 0。</p>
      */
+    @PreAuthorize("@ss.hasPermi('teach:teacher:list')")
     @PostMapping("/teacher/import")
     public Result<Integer> importTeacher(@RequestParam("file") MultipartFile file) throws Exception {
         int count = facultyService.importJYBFromExcel(file);
@@ -306,6 +324,7 @@ public class JYSController {
     /**
      * 导出全部在职教员到 Excel(.xlsx)。
      */
+    @PreAuthorize("@ss.hasPermi('teach:teacher:list')")
     @GetMapping("/teacher/export")
     public void exportTeacher(HttpServletResponse response) throws Exception {
         facultyService.exportJYBExcel(response);
@@ -318,6 +337,7 @@ public class JYSController {
      *
      * @param jybh 教员编号
      */
+    @PreAuthorize("@ss.hasPermi('teach:teacher:list')")
     @GetMapping("/teacher/attribute/get")
     public Result<JYSX> getTeacherAttribute(@RequestParam("jybh") String jybh) {
         JYSX entity = facultyService.getJYSXByJYBH(jybh);
@@ -328,6 +348,7 @@ public class JYSController {
      * 更新教员属性
      * <p>支持岗位调整（修改职务、职务时间）和技术等级调整（修改技术等级、技术等级时间）。</p>
      */
+    @PreAuthorize("@ss.hasPermi('teach:teacher:list')")
     @PostMapping("/teacher/attribute/update")
     public Result<Void> updateTeacherAttribute(@RequestBody JYSX entity) {
         facultyService.updateJYSX(entity);
@@ -343,6 +364,7 @@ public class JYSController {
      * @param entity 课表实体
      * @return 操作结果
      */
+    @PreAuthorize("@ss.hasPermi('teach:subject:list')")
     @PostMapping("/kb/add")
     public Result<Void> addKb(@RequestBody KB entity) {
         kbService.add(entity);
@@ -356,6 +378,7 @@ public class JYSController {
      * @param kbh 课编号
      * @return 操作结果
      */
+    @PreAuthorize("@ss.hasPermi('teach:subject:list')")
     @PostMapping("/kb/delete")
     public Result<Void> deleteKb(@RequestParam("kbh") String kbh) {
         kbService.delete(kbh);
@@ -368,6 +391,7 @@ public class JYSController {
      * @param entity 课表实体（须含课编号）
      * @return 操作结果
      */
+    @PreAuthorize("@ss.hasPermi('teach:subject:list')")
     @PostMapping("/kb/update")
     public Result<Void> updateKb(@RequestBody KB entity) {
         kbService.update(entity);
@@ -380,6 +404,7 @@ public class JYSController {
      * @param kbh 课编号
      * @return 课表详情
      */
+    @PreAuthorize("@ss.hasPermi('teach:subject:list')")
     @GetMapping("/kb/get")
     public Result<KB> getKb(@RequestParam("kbh") String kbh) {
         return Result.success(kbService.getByKbh(kbh));
@@ -399,6 +424,7 @@ public class JYSController {
      * @param jc       简称（模糊，可选）
      * @return 分页结果
      */
+    @PreAuthorize("@ss.hasPermi('teach:subject:list')")
     @GetMapping("/kb/list")
     public Result<PageResult<KB>> listKb(
             @RequestParam(defaultValue = "1") Integer pageNum,
@@ -430,6 +456,7 @@ public class JYSController {
      * 支持按授课教员、课程科目名称、可选班次年级、选修班名称、选择课状态、培训层次筛选。
      * </p>
      */
+    @PreAuthorize("@ss.hasPermi('teach:elective:list')")
     @GetMapping("/elective/list")
     public Result<PageResult<ElectiveCourseVO>> listElective(
             @RequestParam(defaultValue = "1") Integer pageNum,
@@ -453,6 +480,7 @@ public class JYSController {
     /**
      * 新建选修课。
      */
+    @PreAuthorize("@ss.hasPermi('teach:elective:list')")
     @PostMapping("/elective/add")
     public Result<Void> addElective(@RequestBody ElectiveCourseSaveDTO dto) {
         electiveCourseService.add(dto);
@@ -462,6 +490,7 @@ public class JYSController {
     /**
      * 所选批量开放报名。
      */
+    @PreAuthorize("@ss.hasPermi('teach:elective:list')")
     @PostMapping("/elective/batch-open")
     public Result<Integer> batchOpenElective(@RequestBody ElectiveCourseBatchDTO dto) {
         int count = electiveCourseService.batchOpenRegistration(dto == null ? null : dto.getBhList());
@@ -471,6 +500,7 @@ public class JYSController {
     /**
      * 所选批量取消开放报名。
      */
+    @PreAuthorize("@ss.hasPermi('teach:elective:list')")
     @PostMapping("/elective/batch-cancel-open")
     public Result<Integer> batchCancelOpenElective(@RequestBody ElectiveCourseBatchDTO dto) {
         int count = electiveCourseService.batchCancelOpenRegistration(dto == null ? null : dto.getBhList());
@@ -480,6 +510,7 @@ public class JYSController {
     /**
      * 批量停止报名。
      */
+    @PreAuthorize("@ss.hasPermi('teach:elective:list')")
     @PostMapping("/elective/batch-stop")
     public Result<Integer> batchStopElective(@RequestBody ElectiveCourseBatchDTO dto) {
         int count = electiveCourseService.batchStopRegistration(dto == null ? null : dto.getBhList());
@@ -489,6 +520,7 @@ public class JYSController {
     /**
      * 所选批量根据学员反向确定班次范围。
      */
+    @PreAuthorize("@ss.hasPermi('teach:elective:list')")
     @PostMapping("/elective/batch-reverse-range")
     public Result<Integer> batchReverseRangeElective(@RequestBody ElectiveCourseBatchDTO dto) {
         int count = electiveCourseService.batchReverseClassRange(dto == null ? null : dto.getBhList());
@@ -498,6 +530,7 @@ public class JYSController {
     /**
      * 下载选修班列表。
      */
+    @PreAuthorize("@ss.hasPermi('teach:elective:list')")
     @GetMapping("/elective/export")
     public void exportElective(
             @RequestParam(required = false) String jyxm,
@@ -520,6 +553,7 @@ public class JYSController {
     /**
      * 下载选修班学员名单 Excel。
      */
+    @PreAuthorize("@ss.hasPermi('teach:elective:list')")
     @GetMapping("/elective/students/export-excel")
     public void exportElectiveStudentExcel(@RequestParam("bhList") List<String> bhList,
             HttpServletResponse response) {
@@ -529,6 +563,7 @@ public class JYSController {
     /**
      * 下载选修班学员名单 Word。
      */
+    @PreAuthorize("@ss.hasPermi('teach:elective:list')")
     @GetMapping("/elective/students/export-word")
     public void exportElectiveStudentWord(@RequestParam("bhList") List<String> bhList,
             HttpServletResponse response) {
@@ -540,6 +575,7 @@ public class JYSController {
     /**
      * 上传选修课数据。
      */
+    @PreAuthorize("@ss.hasPermi('teach:elective:list')")
     @PostMapping("/elective/import")
     public Result<Integer> importElective(@RequestParam("file") MultipartFile file) throws Exception {
         int count = electiveCourseService.importData(file);
@@ -552,6 +588,7 @@ public class JYSController {
      * 分页查询教学任务列表。
      * <p>含教研室数、学员队数、合班前后课程任务数和学时。未传年度时按当前学期。</p>
      */
+    @PreAuthorize("@ss.hasPermi('teach:taskPlan:list')")
     @GetMapping("/task/list")
     public Result<PageResult<TeachingTaskVO>> listTask(
             @RequestParam(defaultValue = "1") Integer pageNum,
@@ -571,6 +608,7 @@ public class JYSController {
     /**
      * 教学任务详情（含教研室任务书、学员队两个页签）。
      */
+    @PreAuthorize("@ss.hasPermi('teach:taskPlan:list')")
     @GetMapping("/task/get")
     public Result<TeachingTaskDetailVO> getTask(@RequestParam("bh") String bh) {
         return Result.success(teachingTaskManageService.getDetail(bh));
@@ -580,6 +618,7 @@ public class JYSController {
      * 新增教学任务。
      * <p>机关发布；关联学员队后按专业教学计划和课表归属教研室生成教研室任务书。</p>
      */
+    @PreAuthorize("@ss.hasPermi('teach:taskPlan:list')")
     @PostMapping("/task/add")
     public Result<Void> addTask(@RequestBody TeachingTaskSaveDTO dto) {
         teachingTaskManageService.add(dto);
@@ -589,6 +628,7 @@ public class JYSController {
     /**
      * 编辑教学任务。
      */
+    @PreAuthorize("@ss.hasPermi('teach:taskPlan:list')")
     @PostMapping("/task/update")
     public Result<Void> updateTask(@RequestBody TeachingTaskSaveDTO dto) {
         teachingTaskManageService.update(dto);
@@ -598,6 +638,7 @@ public class JYSController {
     /**
      * 删除教学任务（同时逻辑删除教研室任务书，并解除学员队关联）。
      */
+    @PreAuthorize("@ss.hasPermi('teach:taskPlan:list')")
     @PostMapping("/task/delete")
     public Result<Void> deleteTask(@RequestParam("bh") String bh) {
         teachingTaskManageService.delete(bh);
@@ -607,6 +648,7 @@ public class JYSController {
     /**
      * 发布教学任务，并同步发布关联的教研室任务书。
      */
+    @PreAuthorize("@ss.hasPermi('teach:taskPlan:list')")
     @PostMapping("/task/publish")
     public Result<Integer> publishTask(@RequestParam("bh") String bh) {
         int count = teachingTaskManageService.publish(bh);
@@ -616,6 +658,7 @@ public class JYSController {
     /**
      * 结束发布。结束后任务书和课程任务只读。
      */
+    @PreAuthorize("@ss.hasPermi('teach:taskPlan:list')")
     @PostMapping("/task/endPublish")
     public Result<Void> endPublishTask(@RequestParam("bh") String bh) {
         teachingTaskManageService.endPublish(bh);
@@ -625,6 +668,7 @@ public class JYSController {
     /**
      * 教研室任务书列表。
      */
+    @PreAuthorize("@ss.hasPermi('teach:taskPlan:list')")
     @GetMapping("/task/office-book/list")
     public Result<List<TeachingOfficeBookVO>> listTaskOfficeBooks(@RequestParam("jxrwbh") String jxrwbh) {
         return Result.success(teachingTaskManageService.listOfficeBooks(jxrwbh));
@@ -633,6 +677,7 @@ public class JYSController {
     /**
      * 教研室任务书详细（该教研室在本任务下的课程任务）。
      */
+    @PreAuthorize("@ss.hasPermi('teach:taskPlan:list')")
     @GetMapping("/task/office-book/courses")
     public Result<List<TeachingOfficeBookCourseVO>> listTaskOfficeBookCourses(
             @RequestParam("jxrwbh") String jxrwbh,
@@ -643,6 +688,7 @@ public class JYSController {
     /**
      * 教学任务已关联学员队。
      */
+    @PreAuthorize("@ss.hasPermi('teach:taskPlan:list')")
     @GetMapping("/task/squad/list")
     public Result<List<TeachingTaskSquadVO>> listTaskSquads(@RequestParam("jxrwbh") String jxrwbh) {
         return Result.success(teachingTaskManageService.listBoundSquads(jxrwbh));
@@ -651,6 +697,7 @@ public class JYSController {
     /**
      * 某学期可选学员队（未占用或占用当前任务）。年度、学期第次为空时取当前学期。
      */
+    @PreAuthorize("@ss.hasPermi('teach:taskPlan:list')")
     @GetMapping("/task/squad/available")
     public Result<List<TeachingTaskSquadVO>> listAvailableTaskSquads(
             @RequestParam(required = false) Integer nd,
diff --git a/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/dto/faculty/TeacherImportRowDTO.java b/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/dto/faculty/TeacherImportRowDTO.java
new file mode 100644
index 00000000..906e9e63
--- /dev/null
+++ b/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/dto/faculty/TeacherImportRowDTO.java
@@ -0,0 +1,32 @@
+package com.roomroot.jwgl.dto.faculty;
+
+import com.roomroot.jwgl.entity.JYB;
+import lombok.Data;
+
+/**
+ * 教员（教员表）导入行解析结果。
+ * <p>
+ * 保留 Excel 中的原始行号，便于把校验失败原因定位到具体行。
+ * </p>
+ */
+@Data
+public class TeacherImportRowDTO {
+
+    /**
+     * Excel 行号（1 起始，含表头行）。
+     */
+    private int rowNum;
+
+    /**
+     * 该行解析出的教员实体。
+     */
+    private JYB entity;
+
+    public TeacherImportRowDTO() {
+    }
+
+    public TeacherImportRowDTO(int rowNum, JYB entity) {
+        this.rowNum = rowNum;
+        this.entity = entity;
+    }
+}
diff --git a/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/service/impl/FacultyServiceImpl.java b/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/service/impl/FacultyServiceImpl.java
index c93cd4f0..a5554693 100644
--- a/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/service/impl/FacultyServiceImpl.java
+++ b/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/service/impl/FacultyServiceImpl.java
@@ -3,6 +3,7 @@ package com.roomroot.jwgl.service.impl;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.roomroot.jwgl.dto.faculty.AddTeacherDTO;
+import com.roomroot.jwgl.dto.faculty.TeacherImportRowDTO;
 import com.roomroot.jwgl.entity.*;
 import com.roomroot.jwgl.mapper.*;
 import com.roomroot.jwgl.mapper.*;
@@ -20,6 +21,7 @@ import org.springframework.web.multipart.MultipartFile;
 
 import jakarta.annotation.Resource;
 import java.time.LocalDateTime;
+import java.util.ArrayList;
 import java.util.List;
 
 /**
@@ -320,33 +322,53 @@ public class FacultyServiceImpl implements FacultyService {
         if (file == null || file.isEmpty()) {
             throw new BusinessException("导入文件不能为空");
         }
-        List<JYB> list = ExcelParseUtil.parseJYBExcel(
+        List<TeacherImportRowDTO> rows = ExcelParseUtil.parseJYBExcel(
                 file.getInputStream(), file.getOriginalFilename());
-        if (list.isEmpty()) {
+        if (rows.isEmpty()) {
             throw new BusinessException("Excel中无有效数据");
         }
-        for (int i = 0; i < list.size(); i++) {
-            JYB entity = list.get(i);
-            // Excel 第 1 行为抬头，故数据行号 = 下标 + 2
-            int rowNo = i + 2;
+        // 第一轮：逐行校验聚合报错（不回写任何数据）
+        List<String> errors = new ArrayList<>();
+        java.util.Set<String> seenJybh = new java.util.HashSet<>();
+        for (TeacherImportRowDTO row : rows) {
+            JYB entity = row.getEntity();
+            int rowNo = row.getRowNum();
             if (isBlank(entity.getJyxm())) {
-                throw new BusinessException("第 " + rowNo + " 行：教员姓名未填写");
+                errors.add("第 " + rowNo + " 行：教员姓名未填写");
             }
             // 教研室代号为非空外键，缺失会直接抛数据库非空约束异常，这里给出可定位的提示
             if (isBlank(entity.getJysdh())) {
-                throw new BusinessException("第 " + rowNo + " 行：教研室代号未填写");
+                errors.add("第 " + rowNo + " 行：教研室代号未填写");
+            } else if (jysbMapper.selectById(entity.getJysdh().trim()) == null) {
+                errors.add("第 " + rowNo + " 行：教研室代号不存在 " + entity.getJysdh());
             }
-            // 编号为空自动生成
+            if (!isBlank(entity.getJybh())) {
+                String jybh = entity.getJybh().trim();
+                if (jybMapper.selectById(jybh) != null) {
+                    errors.add("第 " + rowNo + " 行：教员编号已存在 " + jybh);
+                } else if (!seenJybh.add(jybh)) {
+                    errors.add("第 " + rowNo + " 行：教员编号在文件内重复 " + jybh);
+                }
+            }
+        }
+        if (!errors.isEmpty()) {
+            throw new BusinessException("导入失败，共 " + errors.size() + " 行校验未通过：\n"
+                    + String.join("\n", errors));
+        }
+        // 第二轮：全部校验通过才入库（事务内，任一异常整批回滚）
+        for (TeacherImportRowDTO row : rows) {
+            JYB entity = row.getEntity();
             if (isBlank(entity.getJybh())) {
                 entity.setJybh(nextJybh());
-            } else if (jybMapper.selectById(entity.getJybh().trim()) != null) {
-                throw new BusinessException("第 " + rowNo + " 行：教员编号已存在 " + entity.getJybh());
+            } else {
+                entity.setJybh(entity.getJybh().trim());
             }
+            entity.setJysdh(entity.getJysdh().trim());
             // 离职状态等非空列兜底（数据库缺省值在 MyBatis-Plus 下不会生效）
             applyTeacherDefaults(entity);
             jybMapper.insert(entity);
         }
-        return list.size();
+        return rows.size();
     }
 
     @Override
diff --git a/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/service/impl/OrgSyncServiceImpl.java b/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/service/impl/OrgSyncServiceImpl.java
index 4282a6fa..b6f73410 100644
--- a/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/service/impl/OrgSyncServiceImpl.java
+++ b/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/service/impl/OrgSyncServiceImpl.java
@@ -158,11 +158,18 @@ public class OrgSyncServiceImpl implements OrgSyncService {
         Long deptId = resolveTeacherDeptId(jyb);
 
         String name = StringUtils.isBlank(loginName) ? jyb.getJybh() : loginName.trim();
+        SysUser existing = userService.selectUserByUserName(name);
+        if (existing != null) {
+            // 孤儿账号（账号在、映射丢失）：复用并回填锚点，不重复建号
+            JYB relink = new JYB();
+            relink.setJybh(jyb.getJybh());
+            relink.setYhbh(existing.getUserId());
+            relink.setBmbh(existing.getDeptId() != null ? existing.getDeptId() : deptId);
+            jybMapper.updateById(relink);
+            return existing.getUserId();
+        }
         SysUser user = new SysUser();
         user.setUserName(name);
-        if (userService.selectUserByUserName(name) != null) {
-            throw new BusinessException("登录名已存在：" + name);
-        }
         user.setNickName(jyb.getJyxm());
         user.setDeptId(deptId);
         user.setPhonenumber(jyb.getSjh());
@@ -189,10 +196,23 @@ public class OrgSyncServiceImpl implements OrgSyncService {
     @Override
     @Transactional(rollbackFor = Exception.class)
     public void syncTeacherAccount(JYB before, JYB after) {
-        if (before == null || before.getYhbh() == null) {
+        if (before == null) {
             return;
         }
-        SysUser user = userService.selectUserById(before.getYhbh());
+        SysUser user = null;
+        if (before.getYhbh() != null) {
+            user = userService.selectUserById(before.getYhbh());
+        }
+        if (user == null && StringUtils.isNotBlank(before.getJybh())) {
+            // 锚点缺失（账号存在但教员表.用户编号未回填）：按登录名=教员编号兜底定位孤儿账号并回填
+            user = userService.selectUserByUserName(before.getJybh());
+            if (user != null && !"2".equals(user.getDelFlag())) {
+                JYB relink = new JYB();
+                relink.setJybh(before.getJybh());
+                relink.setYhbh(user.getUserId());
+                jybMapper.updateById(relink);
+            }
+        }
         if (user == null || "2".equals(user.getDelFlag())) {
             return;
         }
diff --git a/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/utils/ExcelParseUtil.java b/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/utils/ExcelParseUtil.java
index 0b991414..0ec8bdbf 100644
--- a/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/utils/ExcelParseUtil.java
+++ b/backend/roomroot-jwgl/src/main/java/com/roomroot/jwgl/utils/ExcelParseUtil.java
@@ -5,6 +5,7 @@ import com.roomroot.jwgl.dto.courserunning.SemesterImportDTO;
 import com.roomroot.jwgl.dto.courserunning.SingleCourseImportDTO;
 import com.roomroot.jwgl.dto.departmentpersonnel.DepartmentPersonnelCreateDTO;
 import com.roomroot.jwgl.dto.discipline.MajorImportRowDTO;
+import com.roomroot.jwgl.dto.faculty.TeacherImportRowDTO;
 import com.roomroot.jwgl.entity.JXSSJH;
 import com.roomroot.jwgl.entity.JYB;
 import com.roomroot.jwgl.entity.JYSB;
@@ -401,8 +402,8 @@ public class ExcelParseUtil {
      * @return 教员实体列表（离职状态由业务层默认填充）
      * @throws Exception 解析异常
      */
-    public static List<JYB> parseJYBExcel(InputStream inputStream, String fileName) throws Exception {
-        List<JYB> result = new ArrayList<>();
+    public static List<TeacherImportRowDTO> parseJYBExcel(InputStream inputStream, String fileName) throws Exception {
+        List<TeacherImportRowDTO> result = new ArrayList<>();
         Workbook workbook = createWorkbook(inputStream, fileName);
         try {
             Sheet sheet = workbook.getSheetAt(0);
@@ -425,10 +426,14 @@ public class ExcelParseUtil {
                 entity.setBz(getCellStringValue(row.getCell(9)));
                 entity.setXh(getCellStringValue(row.getCell(10)));
                 entity.setXslx(parseIntCell(row.getCell(11)));
-                // 至少要有姓名才视为有效行
-                if (entity.getJyxm() != null && !entity.getJyxm().isEmpty()) {
-                    result.add(entity);
+                // 整行全空的跳过；有任何字段即保留，由业务层逐行校验并聚合报错
+                if (isAllBlank(entity.getJybh(), entity.getJyxm(), entity.getJysdh(),
+                        entity.getZc(), entity.getZyjszwdj(), entity.getJylb(),
+                        entity.getSjh(), entity.getSfzh(), entity.getBz(), entity.getXh())
+                        && entity.getXb() == null && entity.getXslx() == null) {
+                    continue;
                 }
+                result.add(new TeacherImportRowDTO(rowNum + 1, entity));
             }
         } finally {
             workbook.close();
@@ -436,6 +441,15 @@ public class ExcelParseUtil {
         return result;
     }
 
+    private static boolean isAllBlank(String... values) {
+        for (String v : values) {
+            if (v != null && !v.trim().isEmpty()) {
+                return false;
+            }
+        }
+        return true;
+    }
+
     /**
      * 解析培养方案（专业表）导入 Excel 文件（支持 .xls / .xlsx）。
      * <p>表头顺序：</p>