diff --git a/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/block/authority/AuthorityRuleManager.java b/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/block/authority/AuthorityRuleManager.java
index 22b698dd46..8ce0adf447 100755
--- a/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/block/authority/AuthorityRuleManager.java
+++ b/sentinel-core/src/main/java/com/alibaba/csp/sentinel/slots/block/authority/AuthorityRuleManager.java
@@ -39,7 +39,7 @@
  */
 public final class AuthorityRuleManager {
 
-    private static Map<String, Set<AuthorityRule>> authorityRules = new ConcurrentHashMap<>();
+    private static volatile Map<String, Set<AuthorityRule>> authorityRules = new ConcurrentHashMap<>();
 
     private static final RulePropertyListener LISTENER = new RulePropertyListener();
     private static SentinelProperty<List<AuthorityRule>> currentProperty = new DynamicSentinelProperty<>();
@@ -93,12 +93,8 @@ private static class RulePropertyListener implements PropertyListener<List<Autho
 
         @Override
         public void configUpdate(List<AuthorityRule> conf) {
-            Map<String, Set<AuthorityRule>> rules = loadAuthorityConf(conf);
-
-            authorityRules.clear();
-            if (rules != null) {
-                authorityRules.putAll(rules);
-            }
+            authorityRules = loadAuthorityConf(conf);
+            
             RecordLog.info("[AuthorityRuleManager] Authority rules received: {}", authorityRules);
         }
 
@@ -137,12 +133,8 @@ private Map<String, Set<AuthorityRule>> loadAuthorityConf(List<AuthorityRule> li
 
         @Override
         public void configLoad(List<AuthorityRule> value) {
-            Map<String, Set<AuthorityRule>> rules = loadAuthorityConf(value);
+            authorityRules = loadAuthorityConf(value);
 
-            authorityRules.clear();
-            if (rules != null) {
-                authorityRules.putAll(rules);
-            }
             RecordLog.info("[AuthorityRuleManager] Load authority rules: {}", authorityRules);
         }
     }