diff --git a/controller/src/main/java/org/apache/rocketmq/controller/impl/manager/SyncStateInfo.java b/controller/src/main/java/org/apache/rocketmq/controller/impl/manager/SyncStateInfo.java
index dd846c28711..2674dabf547 100644
--- a/controller/src/main/java/org/apache/rocketmq/controller/impl/manager/SyncStateInfo.java
+++ b/controller/src/main/java/org/apache/rocketmq/controller/impl/manager/SyncStateInfo.java
@@ -18,6 +18,7 @@
 
 import java.util.HashSet;
 import java.util.Set;
+import org.apache.commons.lang3.StringUtils;
 
 /**
  * Manages the syncStateSet of broker replicas.
@@ -53,7 +54,7 @@ public void updateSyncStateSetInfo(Set<String> newSyncStateSet) {
     }
 
     public boolean isMasterExist() {
-        return masterAddress != null && !this.masterAddress.isEmpty();
+        return !StringUtils.isBlank(masterAddress);
     }
 
     public String getClusterName() {