diff --git a/common/src/main/java/com/sdm/common/service/UserNameCacheService.java b/common/src/main/java/com/sdm/common/service/UserNameCacheService.java
index aa5f249f..ed5a5e08 100644
--- a/common/src/main/java/com/sdm/common/service/UserNameCacheService.java
+++ b/common/src/main/java/com/sdm/common/service/UserNameCacheService.java
@@ -116,8 +116,10 @@ public class UserNameCacheService {
 
             // 3. 根据关键词过滤
             String lowerKeyword = keyword.trim().toLowerCase();
+            List<String> keywordList = splitKeyword(lowerKeyword);
+
             List<CIDUserResp> result = allUsers.parallelStream()
-                    .filter(user -> matchesKeyword(user, lowerKeyword))
+                    .filter(user -> matchesKeyword(user, keywordList))
                     .collect(Collectors.toList());
 
             log.info("搜索完成，keyword：{}，结果数：{}，耗时：{}ms",
@@ -131,6 +133,24 @@ public class UserNameCacheService {
         }
     }
 
+    /**
+     * 分割关键词（处理逗号分隔，过滤空字符串）
+     */
+    private List<String> splitKeyword(String lowerKeyword) {
+        List<String> keywordList = new ArrayList<>();
+        if (StringUtils.isNotEmpty(lowerKeyword)) {
+            // 按逗号分割，兼容逗号前后有空格的情况
+            String[] splitArray = lowerKeyword.split(",\\s*");
+            for (String word : splitArray) {
+                // 过滤分割后可能的空字符串
+                if (StringUtils.isNotEmpty(word)) {
+                    keywordList.add(word);
+                }
+            }
+        }
+        return keywordList;
+    }
+
     /**
      * 手动清除所有缓存
      */
@@ -139,17 +159,37 @@ public class UserNameCacheService {
         log.info("手动清除所有缓存");
     }
 
-    private boolean matchesKeyword(CIDUserResp user, String lowerKeyword) {
-        if (user == null) return false;
-
-        if (user.getUsername() != null && user.getUsername().toLowerCase().contains(lowerKeyword)) {
-            return true;
+    /**
+     * 扩展匹配逻辑：支持userId、username、nickname匹配
+     */
+    private boolean matchesKeyword(CIDUserResp user, List<String> keywordList) {
+        if (user == null || keywordList.isEmpty()) {
+            return false;
         }
 
-        if (user.getNickname() != null && user.getNickname().toLowerCase().contains(lowerKeyword)) {
-            return true;
-        }
+        // 遍历所有分割后的关键词，只要匹配一个就返回true
+        for (String keyword : keywordList) {
+            // 场景1：关键词是数字，尝试匹配userId（精确匹配）
+            if (keyword.matches("\\d+")) {
+                try {
+                    Long userId = Long.parseLong(keyword);
+                    if (Objects.equals(user.getUserId(), userId)) {
+                        return true;
+                    }
+                } catch (NumberFormatException e) {
+                    // 理论上不会走到这里，因为已经通过数字正则校验
+                    continue;
+                }
+            }
 
+            // 场景2：关键词是非数字，匹配username/nickname
+            if (user.getUsername() != null && user.getUsername().toLowerCase().contains(keyword)) {
+                return true;
+            }
+            if (user.getNickname() != null && user.getNickname().toLowerCase().contains(keyword)) {
+                return true;
+            }
+        }
         return false;
     }
 
diff --git a/system/src/main/java/com/sdm/system/controller/SysUserController.java b/system/src/main/java/com/sdm/system/controller/SysUserController.java
index e743f415..3c28ce61 100644
--- a/system/src/main/java/com/sdm/system/controller/SysUserController.java
+++ b/system/src/main/java/com/sdm/system/controller/SysUserController.java
@@ -78,7 +78,9 @@ public class SysUserController implements ISysUserFeignClient {
      */
     @Operation(summary = "通过关键字查询用户列表", description = "通过关键字查询用户列表")
     @GetMapping("/listUserWithKeyWord")
-    public SdmResponse<List<CIDUserResp>> listUserWithKeyWord(@Parameter(description = "通过关键字查询用户列表") @RequestParam String keyword) {
+    public SdmResponse<List<CIDUserResp>> listUserWithKeyWord(@Parameter(description = "通过关键字查询用户列表")
+                                                              @RequestParam(value = "keyword", required = false) String keyword
+                                                            , @RequestParam(value = "userIds", required = false) String userIds) {
         return SdmResponse.success(userNameCacheService.searchUsers(keyword));
     }