diff --git a/dubbo-metrics/dubbo-metrics-api/src/main/java/org/apache/dubbo/metrics/data/RtStatComposite.java b/dubbo-metrics/dubbo-metrics-api/src/main/java/org/apache/dubbo/metrics/data/RtStatComposite.java
index b49a2864c7..a6e7a681d2 100644
--- a/dubbo-metrics/dubbo-metrics-api/src/main/java/org/apache/dubbo/metrics/data/RtStatComposite.java
+++ b/dubbo-metrics/dubbo-metrics-api/src/main/java/org/apache/dubbo/metrics/data/RtStatComposite.java
@@ -94,7 +94,7 @@ public class RtStatComposite extends AbstractMetricsExport {
 
     public void calcMethodKeyRt(Invocation invocation, String registryOpType, Long responseTime) {
         for (LongContainer container : rtStats.stream().filter(longContainer -> longContainer.specifyType(registryOpType)).collect(Collectors.toList())) {
-            Number current = (Number) ConcurrentHashMapUtils.computeIfAbsent(container, invocation.getServiceName() + "_" + invocation.getMethodName(), container.getInitFunc());
+            Number current = (Number) ConcurrentHashMapUtils.computeIfAbsent(container, invocation.getTargetServiceUniqueName() + "_" + invocation.getMethodName(), container.getInitFunc());
             container.getConsumerFunc().accept(responseTime, current);
         }
     }