diff --git a/backend/src/main/java/com/qqchen/deploy/backend/deploy/service/impl/ServerAlertServiceImpl.java b/backend/src/main/java/com/qqchen/deploy/backend/deploy/service/impl/ServerAlertServiceImpl.java
index 5dcf540c..0995710c 100644
--- a/backend/src/main/java/com/qqchen/deploy/backend/deploy/service/impl/ServerAlertServiceImpl.java
+++ b/backend/src/main/java/com/qqchen/deploy/backend/deploy/service/impl/ServerAlertServiceImpl.java
@@ -61,19 +61,43 @@ public class ServerAlertServiceImpl implements IServerAlertService {
             return;
         }
 
-        // 过滤并检查适用于该服务器的规则
+        // 按照告警类型分组规则，实现专属规则覆盖全局规则
+        Map<MonitorMetricEnum, ServerAlertRule> effectiveRules = new HashMap<>();
+        
         for (ServerAlertRule rule : allRules) {
-            // 过滤：只检查全局规则或匹配的服务器规则
+            // 跳过其他服务器的专属规则
             if (rule.getServerId() != null && !rule.getServerId().equals(serverId)) {
                 continue;
             }
             
-            // 只检查启用的规则
+            // 跳过禁用的规则
             if (!Boolean.TRUE.equals(rule.getEnabled())) {
                 continue;
             }
             
-            // 根据告警类型检查
+            MonitorMetricEnum alertType = rule.getAlertType();
+            ServerAlertRule existingRule = effectiveRules.get(alertType);
+            
+            if (existingRule == null) {
+                // 该类型还没有规则，直接使用
+                effectiveRules.put(alertType, rule);
+            } else {
+                // 该类型已有规则，专属规则优先（覆盖全局规则）
+                boolean isExistingGlobal = existingRule.getServerId() == null;
+                boolean isCurrentSpecific = rule.getServerId() != null;
+                
+                if (isCurrentSpecific && isExistingGlobal) {
+                    // 当前是专属规则，已有是全局规则 → 用专属规则覆盖
+                    effectiveRules.put(alertType, rule);
+                    log.debug("服务器专属规则覆盖全局规则: serverId={}, alertType={}, ruleId={}", 
+                        serverId, alertType, rule.getId());
+                }
+                // 否则保持原有规则（专属优先，或者先到先得）
+            }
+        }
+        
+        // 使用筛选后的有效规则进行检查
+        for (ServerAlertRule rule : effectiveRules.values()) {
             checkSingleRule(serverId, monitorData, rule, config);
         }
     }