diff --git a/ruoyi-common/ruoyi-common-sse/src/main/java/org/dromara/common/sse/core/SseEmitterDelayed.java b/ruoyi-common/ruoyi-common-sse/src/main/java/org/dromara/common/sse/core/SseEmitterDelayed.java
index cb9ad4d62..fa8f3368b 100644
--- a/ruoyi-common/ruoyi-common-sse/src/main/java/org/dromara/common/sse/core/SseEmitterDelayed.java
+++ b/ruoyi-common/ruoyi-common-sse/src/main/java/org/dromara/common/sse/core/SseEmitterDelayed.java
@@ -60,6 +60,12 @@ public class SseEmitterDelayed implements Delayed {
         this.expireAt = Instant.now().toEpochMilli() + unit.toMillis(delay);
     }
 
+    /**
+     * 续期当前延迟任务的到期时间
+     *
+     * @param delay 延迟时长（例如 30 表示 30 秒）
+     * @param unit  时间单位（如秒、分钟等）
+     */
     public void renew(long delay, TimeUnit unit) {
         this.expireAt = System.currentTimeMillis() + unit.toMillis(delay);
     }