diff --git a/src/server/engine/worker.go b/src/server/engine/worker.go
index 5bbb5f945f2c3ed24769e14fe608a9447fd3ca09..f67ec7b040043ff215d16982ae894113d951bce1 100644
--- a/src/server/engine/worker.go
+++ b/src/server/engine/worker.go
@@ -344,7 +344,7 @@ func (r RuleEval) recoverRule(alertingKeys map[string]struct{}, now int64) {
 		}
 
 		// 如果配置了留观时长，就不能立马恢复了
-		if r.rule.RecoverDuration > 0 && now-event.LastEvalTime > r.rule.RecoverDuration {
+		if r.rule.RecoverDuration > 0 && now-event.LastEvalTime <= r.rule.RecoverDuration {
 			continue
 		}