diff --git a/spring-cloud-alibaba-sentinel/src/main/java/org/springframework/cloud/alibaba/sentinel/custom/SentinelBeanPostProcessor.java b/spring-cloud-alibaba-sentinel/src/main/java/org/springframework/cloud/alibaba/sentinel/custom/SentinelBeanPostProcessor.java
index fe22c902..7ec733b5 100644
--- a/spring-cloud-alibaba-sentinel/src/main/java/org/springframework/cloud/alibaba/sentinel/custom/SentinelBeanPostProcessor.java
+++ b/spring-cloud-alibaba-sentinel/src/main/java/org/springframework/cloud/alibaba/sentinel/custom/SentinelBeanPostProcessor.java
@@ -16,7 +16,9 @@
 
 package org.springframework.cloud.alibaba.sentinel.custom;
 
-import com.alibaba.csp.sentinel.slots.block.BlockException;
+import java.lang.reflect.Method;
+import java.util.Arrays;
+import java.util.concurrent.ConcurrentHashMap;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -38,9 +40,7 @@ import org.springframework.util.ClassUtils;
 import org.springframework.util.StringUtils;
 import org.springframework.web.client.RestTemplate;
 
-import java.lang.reflect.Method;
-import java.util.Arrays;
-import java.util.concurrent.ConcurrentHashMap;
+import com.alibaba.csp.sentinel.slots.block.BlockException;
 
 /**
  * PostProcessor handle @SentinelRestTemplate Annotation, add interceptor for RestTemplate
@@ -193,6 +193,9 @@ public class SentinelBeanPostProcessor implements MergedBeanDefinitionPostProces
 		// register SentinelProtectInterceptor bean
 		DefaultListableBeanFactory beanFactory = (DefaultListableBeanFactory) applicationContext
 				.getAutowireCapableBeanFactory();
+		if (beanFactory.containsBean(interceptorBeanName)) {
+			return;
+		}
 		BeanDefinitionBuilder beanDefinitionBuilder = BeanDefinitionBuilder
 				.genericBeanDefinition(SentinelProtectInterceptor.class);
 		beanDefinitionBuilder.addConstructorArgValue(sentinelRestTemplate);
diff --git a/spring-cloud-alibaba-sentinel/src/test/java/org/springframework/cloud/alibaba/sentinel/SentinelRestTemplateTests.java b/spring-cloud-alibaba-sentinel/src/test/java/org/springframework/cloud/alibaba/sentinel/SentinelRestTemplateTests.java
index f95c4616..43b0b43d 100644
--- a/spring-cloud-alibaba-sentinel/src/test/java/org/springframework/cloud/alibaba/sentinel/SentinelRestTemplateTests.java
+++ b/spring-cloud-alibaba-sentinel/src/test/java/org/springframework/cloud/alibaba/sentinel/SentinelRestTemplateTests.java
@@ -85,6 +85,11 @@ public class SentinelRestTemplateTests {
 		new AnnotationConfigApplicationContext(TestConfig9.class);
 	}
 
+    @Test
+    public void testNormalWithoutParam() {
+        new AnnotationConfigApplicationContext(TestConfig10.class);
+    }
+
 	@Configuration
 	public static class TestConfig1 {
 		@Bean
@@ -220,6 +225,27 @@ public class SentinelRestTemplateTests {
 		}
 	}
 
+    @Configuration
+    public static class TestConfig10 {
+        @Bean
+        SentinelBeanPostProcessor sentinelBeanPostProcessor(
+            ApplicationContext applicationContext) {
+            return new SentinelBeanPostProcessor(applicationContext);
+        }
+
+        @Bean
+        @SentinelRestTemplate
+        RestTemplate restTemplate() {
+            return new RestTemplate();
+        }
+
+        @Bean
+        @SentinelRestTemplate
+        RestTemplate restTemplate2() {
+            return new RestTemplate();
+        }
+    }
+
 	public static class ExceptionUtil {
 		public static SentinelClientHttpResponse handleException(HttpRequest request,
 				byte[] body, ClientHttpRequestExecution execution, BlockException ex) {