diff --git a/ruoyi-common/ruoyi-common-sse/src/main/java/org/dromara/common/sse/core/SseEmitterManager.java b/ruoyi-common/ruoyi-common-sse/src/main/java/org/dromara/common/sse/core/SseEmitterManager.java
index bc19460f8..313f0291a 100644
--- a/ruoyi-common/ruoyi-common-sse/src/main/java/org/dromara/common/sse/core/SseEmitterManager.java
+++ b/ruoyi-common/ruoyi-common-sse/src/main/java/org/dromara/common/sse/core/SseEmitterManager.java
@@ -2,6 +2,7 @@ package org.dromara.common.sse.core;
 
 import cn.hutool.core.map.MapUtil;
 import lombok.extern.slf4j.Slf4j;
+import org.dromara.common.core.utils.SpringUtils;
 import org.dromara.common.redis.utils.RedisUtils;
 import org.dromara.common.sse.dto.SseMessageDto;
 import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
@@ -9,6 +10,8 @@ import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
 import java.io.IOException;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
 import java.util.function.Consumer;
 
 /**
@@ -26,6 +29,12 @@ public class SseEmitterManager {
 
     private final static Map<Long, Map<String, SseEmitter>> USER_TOKEN_EMITTERS = new ConcurrentHashMap<>();
 
+    public SseEmitterManager() {
+        // 定时执行 SSE 心跳检测
+        SpringUtils.getBean(ScheduledExecutorService.class)
+            .scheduleWithFixedDelay(this::sseMonitor, 60L, 60L, TimeUnit.SECONDS);
+    }
+
     /**
      * 建立与指定用户的 SSE 连接
      *
@@ -38,6 +47,12 @@ public class SseEmitterManager {
         // 每个用户可以有多个 SSE 连接，通过 token 进行区分
         Map<String, SseEmitter> emitters = USER_TOKEN_EMITTERS.computeIfAbsent(userId, k -> new ConcurrentHashMap<>());
 
+        // 关闭已存在的SseEmitter，防止超过最大连接数
+        SseEmitter oldEmitter = emitters.remove(token);
+        if (oldEmitter != null) {
+            oldEmitter.complete();
+        }
+
         // 创建一个新的 SseEmitter 实例，超时时间设置为一天 避免连接之后直接关闭浏览器导致连接停滞
         SseEmitter emitter = new SseEmitter(86400000L);
 
@@ -97,6 +112,25 @@ public class SseEmitterManager {
         }
     }
 
+    /**
+     * SSE心跳检测，关闭无效连接
+     */
+    public void sseMonitor() {
+        log.info("开始 SSE 心跳");
+        USER_TOKEN_EMITTERS.forEach((userId, map) ->
+            map.entrySet().removeIf(e -> {
+                try {
+                    e.getValue().send(SseEmitter.event().comment("heartbeat"));
+                    return false;
+                } catch (Exception ex) {
+                    log.warn("心跳失败，移除连接: userId={}, token={}", userId, e.getKey());
+                    e.getValue().complete();
+                    return true;
+                }
+            })
+        );
+    }
+
     /**
      * 订阅SSE消息主题，并提供一个消费者函数来处理接收到的消息
      *