diff --git a/business-css/src/main/java/com/yfd/business/css/controller/CriticalDataController.java b/business-css/src/main/java/com/yfd/business/css/controller/CriticalDataController.java
index 9f023b1..e11a5d2 100644
--- a/business-css/src/main/java/com/yfd/business/css/controller/CriticalDataController.java
+++ b/business-css/src/main/java/com/yfd/business/css/controller/CriticalDataController.java
@@ -4,10 +4,18 @@ import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.yfd.business.css.domain.CriticalData;
 import com.yfd.business.css.service.CriticalDataService;
+import com.yfd.platform.system.service.IUserService;
+
+
+import org.springframework.security.authentication.AnonymousAuthenticationToken;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
 import jakarta.annotation.Resource;
+
+import java.time.LocalDateTime;
 import java.util.List;
 
 @RestController
@@ -16,6 +24,8 @@ public class CriticalDataController {
 
     @Resource
     private CriticalDataService criticalDataService;
+    @Resource
+    private IUserService userService;
 
     /**
      * 1. 新增临界数据
@@ -26,9 +36,22 @@ public class CriticalDataController {
      */
     @PostMapping
     public boolean create(@RequestBody CriticalData data) {
+        data.setModifier(currentUsername());
         return criticalDataService.save(data);
     }
 
+    private String currentUsername() {
+        try {
+            Authentication auth = SecurityContextHolder.getContext().getAuthentication();
+            if (auth == null || auth instanceof AnonymousAuthenticationToken) {
+                return "anonymous";
+            }
+            return userService.getUsername();
+        } catch (Exception e) {
+            return "anonymous";
+        }
+    }
+
     /**
      * 2. 修改临界数据
      * 输入参数：请求体中的临界数据对象（需包含主键）
@@ -38,6 +61,8 @@ public class CriticalDataController {
      */
     @PutMapping
     public boolean update(@RequestBody CriticalData data) {
+        data.setModifier(currentUsername());
+        data.setUpdatedAt(LocalDateTime.now());
         return criticalDataService.updateById(data);
     }