diff --git a/src/main/java/cn/teammodel/controller/admin/service/impl/TeacherServiceImpl.java b/src/main/java/cn/teammodel/controller/admin/service/impl/TeacherServiceImpl.java
index fd4a8d0..de17fde 100644
--- a/src/main/java/cn/teammodel/controller/admin/service/impl/TeacherServiceImpl.java
+++ b/src/main/java/cn/teammodel/controller/admin/service/impl/TeacherServiceImpl.java
@@ -1398,7 +1398,7 @@ public class TeacherServiceImpl implements TeacherService {
     public void update(TeacherDto teacherDto) {
         try {
             String id = teacherDto.getTmdId();
-            String code = teacherDto.getCode() + "-" + id;
+            String code = String.format(PK.PTTEACHER, teacherDto.getCode());
             PtTeacherInfo ptTeacherInfo = ptTeacherRepository.findByIdAndCode(id, code);
             // 局部更新
             CosmosPatchOperations operations = CosmosPatchOperations.create();
@@ -1415,7 +1415,7 @@ public class TeacherServiceImpl implements TeacherService {
     public Map<String, Object> findIdentityByTmdId(TeacherDto teacherDto) {
         try {
             String id = teacherDto.getTmdId();
-            String code = teacherDto.getCode() + "-" + id;
+            String code = String.format(PK.PTTEACHER, teacherDto.getCode());
             PtTeacherInfo ptTeacherInfo = ptTeacherRepository.findByIdAndCode(id, code);
             if (ptTeacherInfo != null) {
                 Map<String, Object> result = new HashMap<>();