diff --git a/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/impl/ProjectGroupServiceImpl.java b/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/impl/ProjectGroupServiceImpl.java
index 6a6b5e4..24ffd0c 100644
--- a/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/impl/ProjectGroupServiceImpl.java
+++ b/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/impl/ProjectGroupServiceImpl.java
@@ -19,6 +19,7 @@ import org.springframework.stereotype.Service;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 
 /**
  * @author 张韬
@@ -99,16 +100,24 @@ public class ProjectGroupServiceImpl extends ServiceImpl<ProjectGroupMapper, Pro
     @Override
     public Boolean updateStaffPositions(String token, Integer projectId, Integer targetId, String positions) throws ForbiddenException, BadRequestException {
         int accessLevel = getProjectAccessLevel(token, projectId);
-        int originTargetLevel = getProjectAccessLevelIgnoreGlobalLevel(targetId, projectId);
-        if (originTargetLevel == 0) {
+        //int originTargetLevel = getProjectAccessLevelIgnoreGlobalLevel(targetId, projectId);
+        ProjectGroup originProjectGroup = baseMapper.selectOne(Wrappers.<ProjectGroup>lambdaQuery()
+                .select(ProjectGroup::getProjectStaffPosition, ProjectGroup::getProjectAccessLevel)
+                .eq(ProjectGroup::getStaffId, targetId)
+                .eq(ProjectGroup::getProjectId, projectId)
+        );
+        if (originProjectGroup == null || originProjectGroup.getProjectAccessLevel() == 0) {
             throw new BadRequestException("该项目中不存在该成员");
         }
+        if (Objects.equals(positions, originProjectGroup.getProjectStaffPosition())) {
+            return true;
+        }
         int targetLevel = 3;
 
         if (accessLevel == 0) {
             throw new ForbiddenException(IProjectGroupService.UNABLE_TO_ACCESS_PROJECT);
         }
-        if (accessLevel > 2 || accessLevel >= originTargetLevel) {
+        if (accessLevel > 2 || accessLevel >= originProjectGroup.getProjectAccessLevel()) {
             throw new ForbiddenException(ForbiddenException.UNABLE_TO_OPERATE);
         }
         String[] positionArray = positions.split(",");
diff --git a/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/impl/ProjectServiceImpl.java b/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/impl/ProjectServiceImpl.java
index ed378bf..512dcb7 100644
--- a/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/impl/ProjectServiceImpl.java
+++ b/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/impl/ProjectServiceImpl.java
@@ -123,6 +123,9 @@ public class ProjectServiceImpl extends ServiceImpl<ProjectMapper, Project> impl
             throw new ForbiddenException(ForbiddenException.UNABLE_TO_OPERATE);
         }
         Project rawProject = baseMapper.selectById(project.getProjectId());
+        if (Objects.equals(project, rawProject)) {
+            return true;
+        }
         if (!project.checkModification(rawProject)) {
             throw new BadRequestException(BadRequestException.WRONG_PARAMETERS);
         }