diff --git a/dubbo-monitor/dubbo-monitor-api/src/main/java/org/apache/dubbo/monitor/support/AbstractMonitorFactory.java b/dubbo-monitor/dubbo-monitor-api/src/main/java/org/apache/dubbo/monitor/support/AbstractMonitorFactory.java
index 74a129b99b5c..9708e905a492 100644
--- a/dubbo-monitor/dubbo-monitor-api/src/main/java/org/apache/dubbo/monitor/support/AbstractMonitorFactory.java
+++ b/dubbo-monitor/dubbo-monitor-api/src/main/java/org/apache/dubbo/monitor/support/AbstractMonitorFactory.java
@@ -85,8 +85,8 @@ public Monitor getMonitor(URL url) {
 
             final URL monitorUrl = url;
             final CompletableFuture<Monitor> completableFuture = CompletableFuture.supplyAsync(() -> AbstractMonitorFactory.this.createMonitor(monitorUrl));
-            completableFuture.thenRunAsync(new MonitorListener(key), executor);
             FUTURES.put(key, completableFuture);
+            completableFuture.thenRunAsync(new MonitorListener(key), executor);
 
             return null;
         } finally {