diff --git a/backend/src/main/java/com/yfd/platform/data/mapper/ImportTaskMapper.java b/backend/src/main/java/com/yfd/platform/data/mapper/ImportTaskMapper.java
index e36f654..8325796 100644
--- a/backend/src/main/java/com/yfd/platform/data/mapper/ImportTaskMapper.java
+++ b/backend/src/main/java/com/yfd/platform/data/mapper/ImportTaskMapper.java
@@ -64,6 +64,6 @@ public interface ImportTaskMapper extends BaseMapper<ImportTask> {
             "    WHERE UPLOAD_USER_ID = #{uploadUserId} \n" +
             "      AND BIZ_TYPE = 'FISH' \n" +
             "    ORDER BY CREATED_AT DESC\n" +
-            ") WHERE ROWNUM = 1;")
+            ") WHERE ROWNUM = 1")
     ImportTask selectLastByUserId(@Param("uploadUserId") String uploadUserId);
 }
\ No newline at end of file
diff --git a/backend/src/main/java/com/yfd/platform/data/service/impl/ApprovalChangeLogServiceImpl.java b/backend/src/main/java/com/yfd/platform/data/service/impl/ApprovalChangeLogServiceImpl.java
index f1f730a..c6dbc3c 100644
--- a/backend/src/main/java/com/yfd/platform/data/service/impl/ApprovalChangeLogServiceImpl.java
+++ b/backend/src/main/java/com/yfd/platform/data/service/impl/ApprovalChangeLogServiceImpl.java
@@ -1,14 +1,16 @@
 package com.yfd.platform.data.service.impl;
 
+import cn.hutool.core.util.StrUtil;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.yfd.platform.data.domain.ApprovalChangeLog;
 import com.yfd.platform.data.mapper.ApprovalChangeLogMapper;
 import com.yfd.platform.data.service.IApprovalChangeLogService;
+import com.yfd.platform.system.domain.SysUser;
+import com.yfd.platform.system.mapper.SysUserMapper;
 import jakarta.annotation.Resource;
 import org.springframework.stereotype.Service;
 
-import java.util.Date;
-import java.util.List;
+import java.util.*;
 
 /**
  * <p>
@@ -21,11 +23,48 @@ public class ApprovalChangeLogServiceImpl extends ServiceImpl<ApprovalChangeLogM
     @Resource
     private ApprovalChangeLogMapper approvalChangeLogMapper;
 
+    @Resource
+    private SysUserMapper sysUserMapper;
     @Override
     public List<ApprovalChangeLog> getByApprovalId(String approvalId) {
         return approvalChangeLogMapper.selectByApprovalId(approvalId);
     }
+    @Override
+    public void fillUserNames(List<ApprovalChangeLog> list) {
+        if (list == null || list.isEmpty()) {
+            return;
+        }
 
+        Set<String> userIds = new HashSet<>();
+        for (ApprovalChangeLog vo : list) {
+            if (StrUtil.isNotBlank(vo.getApprovalId())) {
+                userIds.add(vo.getApprovalId());
+            }
+            if (StrUtil.isNotBlank(vo.getOperatorId())) {
+                userIds.add(vo.getOperatorId());
+            }
+        }
+
+        if (userIds.isEmpty()) {
+            return;
+        }
+
+        Map<String, String> userNameMap = new HashMap<>();
+        List<SysUser> users = sysUserMapper.selectBatchIds(userIds);
+        for (SysUser user : users) {
+            userNameMap.put(user.getId(), user.getNickname());
+        }
+
+        for (ApprovalChangeLog vo : list) {
+            if (StrUtil.isNotBlank(vo.getApprovalId())) {
+                vo.setApprovalName(userNameMap.get(vo.getApprovalId()));
+            }
+            if (StrUtil.isNotBlank(vo.getOperatorId())) {
+                vo.setOperatorName(userNameMap.get(vo.getOperatorId()));
+            }
+
+        }
+    }
     @Override
     public List<ApprovalChangeLog> getByDataId(String dataId) {
         return approvalChangeLogMapper.selectByDataId(dataId);