diff --git a/proxy/src/main/java/org/apache/rocketmq/proxy/grpc/GrpcServerBuilder.java b/proxy/src/main/java/org/apache/rocketmq/proxy/grpc/GrpcServerBuilder.java
index bd72629814..e380db3439 100644
--- a/proxy/src/main/java/org/apache/rocketmq/proxy/grpc/GrpcServerBuilder.java
+++ b/proxy/src/main/java/org/apache/rocketmq/proxy/grpc/GrpcServerBuilder.java
@@ -142,11 +142,8 @@ public class GrpcServerBuilder {
 
     public GrpcServerBuilder configInterceptor() {
         // grpc interceptors, including acl, logging etc.
-        if (ConfigurationManager.getProxyConfig().isEnableACL()) {
-            List<AccessValidator> accessValidators = ServiceProvider.load(ServiceProvider.ACL_VALIDATOR_ID, AccessValidator.class);
-            if (accessValidators.isEmpty()) {
-                throw new IllegalArgumentException("Load AccessValidator failed");
-            }
+        List<AccessValidator> accessValidators = ServiceProvider.load(ServiceProvider.ACL_VALIDATOR_ID, AccessValidator.class);
+        if (!accessValidators.isEmpty()) {
             this.serverBuilder.intercept(new AuthenticationInterceptor(accessValidators));
         }
 
diff --git a/proxy/src/main/java/org/apache/rocketmq/proxy/grpc/interceptor/AuthenticationInterceptor.java b/proxy/src/main/java/org/apache/rocketmq/proxy/grpc/interceptor/AuthenticationInterceptor.java
index 409c2c8c16..5d3fc0f105 100644
--- a/proxy/src/main/java/org/apache/rocketmq/proxy/grpc/interceptor/AuthenticationInterceptor.java
+++ b/proxy/src/main/java/org/apache/rocketmq/proxy/grpc/interceptor/AuthenticationInterceptor.java
@@ -32,6 +32,7 @@ import org.apache.rocketmq.acl.AccessValidator;
 import org.apache.rocketmq.acl.common.AclException;
 import org.apache.rocketmq.acl.common.MetadataHeader;
 import org.apache.rocketmq.acl.plain.PlainAccessResource;
+import org.apache.rocketmq.proxy.config.ConfigurationManager;
 
 public class AuthenticationInterceptor implements ServerInterceptor {
     private final List<AccessValidator> accessValidatorList;
@@ -46,28 +47,32 @@ public class AuthenticationInterceptor implements ServerInterceptor {
         return new ForwardingServerCallListener.SimpleForwardingServerCallListener<R>(next.startCall(call, headers)) {
             @Override
             public void onMessage(R message) {
-                try {
-                    GeneratedMessageV3 messageV3 = (GeneratedMessageV3) message;
-                    MetadataHeader metadataHeader = MetadataHeader.builder()
-                        .remoteAddress(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.REMOTE_ADDRESS))
-                        .namespace(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.NAMESPACE_ID))
-                        .authorization(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.AUTHORIZATION))
-                        .datetime(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.DATE_TIME))
-                        .sessionToken(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.SESSION_TOKEN))
-                        .requestId(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.REQUEST_ID))
-                        .language(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.LANGUAGE))
-                        .clientVersion(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.CLIENT_VERSION))
-                        .protocol(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.PROTOCOL_VERSION))
-                        .requestCode(RequestMapping.map(messageV3.getDescriptorForType().getFullName()))
-                        .build();
-                    for (AccessValidator accessValidator : accessValidatorList) {
-                        AccessResource accessResource = accessValidator.parse(messageV3, metadataHeader);
-                        accessValidator.validate(accessResource);
-                        addHeader(headers, messageV3, accessResource);
+                if (ConfigurationManager.getProxyConfig().isEnableACL()) {
+                    try {
+                        GeneratedMessageV3 messageV3 = (GeneratedMessageV3) message;
+                        MetadataHeader metadataHeader = MetadataHeader.builder()
+                            .remoteAddress(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.REMOTE_ADDRESS))
+                            .namespace(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.NAMESPACE_ID))
+                            .authorization(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.AUTHORIZATION))
+                            .datetime(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.DATE_TIME))
+                            .sessionToken(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.SESSION_TOKEN))
+                            .requestId(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.REQUEST_ID))
+                            .language(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.LANGUAGE))
+                            .clientVersion(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.CLIENT_VERSION))
+                            .protocol(InterceptorConstants.METADATA.get(Context.current()).get(InterceptorConstants.PROTOCOL_VERSION))
+                            .requestCode(RequestMapping.map(messageV3.getDescriptorForType().getFullName()))
+                            .build();
+                        for (AccessValidator accessValidator : accessValidatorList) {
+                            AccessResource accessResource = accessValidator.parse(messageV3, metadataHeader);
+                            accessValidator.validate(accessResource);
+                            addHeader(headers, messageV3, accessResource);
+                        }
+                        super.onMessage(message);
+                    } catch (AclException aclException) {
+                        throw new StatusRuntimeException(Status.PERMISSION_DENIED, headers);
                     }
+                } else {
                     super.onMessage(message);
-                } catch (AclException aclException) {
-                    throw new StatusRuntimeException(Status.PERMISSION_DENIED, headers);
                 }
             }
         };