diff --git a/src/main/java/cn/teammodel/test/AsyncTeacherService.java b/src/main/java/cn/teammodel/test/AsyncTeacherService.java
index 4732544..02b9583 100644
--- a/src/main/java/cn/teammodel/test/AsyncTeacherService.java
+++ b/src/main/java/cn/teammodel/test/AsyncTeacherService.java
@@ -26,51 +26,49 @@ public class AsyncTeacherService {
     @Transactional(rollbackFor = Exception.class)
     public void asyncSavePtTeacherInfos(List<GpTeacherVo> teachersList) {
         try {
+            if (teachersList.isEmpty()) {
+                return; // 处理空输入，避免后续NPE
+            }
             String schoolCode = teachersList.get(0).getCode();
 
+            // 加载现有教师数据（假设已按学校码过滤）
             Map<String, PtTeacherInfo> existingTeachers = loadExistingTeachers(teachersList);
-            // 查询该学校的所有现有教师
-            String code = String.format(PK.PTTEACHER, schoolCode);
-            List<PtTeacherInfo> allExistingInSchool = ptTeacherRepository.findByCode(code);
 
-            // 收集传入列表中的教师ID
+            // 收集传入教师ID集合
             Set<String> incomingIds = teachersList.stream()
                     .map(GpTeacherVo::getId)
                     .filter(Objects::nonNull)
                     .collect(Collectors.toSet());
 
-            // 找出需要停用的教师（存在于数据库但不在传入列表中）
-            List<PtTeacherInfo> toDeactivate = allExistingInSchool.stream()
-                    .filter(pt -> pt.getId() != null && !incomingIds.contains(pt.getId()))
+            // 直接使用existingTeachers获取待停用教师
+            List<PtTeacherInfo> toDeactivate = existingTeachers.values().stream()
+                    .filter(pt -> !incomingIds.contains(pt.getId()) && pt.getId() != null)
+                    .filter(pt -> !"pt".equals(pt.getSource())) // 提前过滤无需处理的记录
+                    .peek(pt -> {
+                        pt.setState(2);
+                        pt.setVersion(pt.getVersion() + 1);
+                    })
                     .collect(Collectors.toList());
 
-            // 更新停用教师的状态和版本 根据属性source等于pt 无需改变状态和版本
-            toDeactivate.removeIf(pt -> pt.getSource().equals("pt"));
-            toDeactivate.forEach(pt -> {
-                {
-                    pt.setState(2);
-                    pt.setVersion(pt.getVersion() + 1);
-                }
-            });
-
-            // 保存停用教师到数据库并更新缓存
+            // 批量停用
             if (!toDeactivate.isEmpty()) {
                 ptTeacherRepository.saveAll(toDeactivate);
-                //toDeactivate.forEach(pt -> PT_TEACHER_CACHE.put(pt.getCode(), pt));
+                // toDeactivate.forEach(pt -> PT_TEACHER_CACHE.put(pt.getCode(), pt));
             }
 
+            // 处理更新（合并过滤与转换操作）
             List<PtTeacherInfo> updates = teachersList.stream()
                     .filter(t -> t.getId() != null)
                     .map(t -> convertToPtTeacherInfo(t, existingTeachers))
-                    .filter(Objects::nonNull) // 过滤掉未变更的记录
+                    .filter(Objects::nonNull)
                     .collect(Collectors.toList());
 
             if (!updates.isEmpty()) {
-                //ptTeacherRepository.saveAll(updates);
-                //updates.forEach(pt -> PT_TEACHER_CACHE.put(pt.getCode(), pt));
+                ptTeacherRepository.saveAll(updates);
+                // updates.forEach(pt -> PT_TEACHER_CACHE.put(pt.getCode(), pt));
             }
         } catch (Exception e) {
-            log.error("Failed to save teacher info asynchronously", e);
+            log.error("Async save teacher info failed", e);
         }
     }