diff --git a/cim-client-sdk/src/main/java/com/crossoverjie/cim/client/sdk/ClientBuilder.java b/cim-client-sdk/src/main/java/com/crossoverjie/cim/client/sdk/ClientBuilder.java
index 138aac1f..783b3b3c 100644
--- a/cim-client-sdk/src/main/java/com/crossoverjie/cim/client/sdk/ClientBuilder.java
+++ b/cim-client-sdk/src/main/java/com/crossoverjie/cim/client/sdk/ClientBuilder.java
@@ -22,5 +22,5 @@ public interface ClientBuilder {
     ClientBuilder okHttpClient(OkHttpClient okHttpClient);
     ClientBuilder messageListener(MessageListener messageListener);
     ClientBuilder callbackThreadPool(ThreadPoolExecutor callbackThreadPool);
-    ClientBuilder backoffStrategy(String backoffStrategy);
+    ClientBuilder backoffStrategy(BackoffStrategy backoffStrategy);
 }
diff --git a/cim-client-sdk/src/main/java/com/crossoverjie/cim/client/sdk/impl/ClientBuilderImpl.java b/cim-client-sdk/src/main/java/com/crossoverjie/cim/client/sdk/impl/ClientBuilderImpl.java
index 2f2bbab0..80034b28 100644
--- a/cim-client-sdk/src/main/java/com/crossoverjie/cim/client/sdk/impl/ClientBuilderImpl.java
+++ b/cim-client-sdk/src/main/java/com/crossoverjie/cim/client/sdk/impl/ClientBuilderImpl.java
@@ -89,15 +89,8 @@ public ClientBuilder callbackThreadPool(ThreadPoolExecutor callbackThreadPool) {
     }
 
     @Override
-    public ClientBuilder backoffStrategy(String backoffStrategy) {
-        Class<?> clazz = null;
-        try {
-            clazz = Class.forName(backoffStrategy);
-            Constructor<?> constructor = clazz.getDeclaredConstructor();
-            this.conf.setBackoffStrategy((BackoffStrategy) constructor.newInstance());
-        } catch (Exception e) {
-            logger.error("error loader backoffStrategy, using default RandomBackoff", e);
-        }
+    public ClientBuilder backoffStrategy(BackoffStrategy backoffStrategy) {
+        this.conf.setBackoffStrategy(backoffStrategy);
         return this;
     }
 }
diff --git a/cim-client-sdk/src/test/java/com/crossoverjie/cim/client/sdk/ClientTest.java b/cim-client-sdk/src/test/java/com/crossoverjie/cim/client/sdk/ClientTest.java
index 11509998..54dca1ea 100644
--- a/cim-client-sdk/src/test/java/com/crossoverjie/cim/client/sdk/ClientTest.java
+++ b/cim-client-sdk/src/test/java/com/crossoverjie/cim/client/sdk/ClientTest.java
@@ -1,6 +1,7 @@
 package com.crossoverjie.cim.client.sdk;
 
 import com.crossoverjie.cim.client.sdk.impl.ClientConfigurationData;
+import com.crossoverjie.cim.client.sdk.io.backoff.RandomBackoff;
 import com.crossoverjie.cim.client.sdk.route.AbstractRouteBaseTest;
 import com.crossoverjie.cim.common.pojo.CIMUserInfo;
 import com.crossoverjie.cim.route.api.vo.req.P2PReqVO;
@@ -224,7 +225,7 @@ public void testReconnect() throws Exception {
                 .userName(zs)
                 .userId(zsId)
                 .build();
-        var backoffStrategy = "com.crossoverjie.cim.client.sdk.io.backoff.RandomBackoff";
+        var backoffStrategy = new RandomBackoff();
 
         @Cleanup
         Client client1 = Client.builder()
diff --git a/cim-client/src/main/java/com/crossoverjie/cim/client/config/AppConfiguration.java b/cim-client/src/main/java/com/crossoverjie/cim/client/config/AppConfiguration.java
index 41e95530..a0ffad31 100644
--- a/cim-client/src/main/java/com/crossoverjie/cim/client/config/AppConfiguration.java
+++ b/cim-client/src/main/java/com/crossoverjie/cim/client/config/AppConfiguration.java
@@ -29,8 +29,6 @@ public class AppConfiguration {
 
     @Value("${cim.reconnect.count}")
     private int reconnectCount;
-    @Value("${cim.reconnect.backoff.strategy}")
-    private String backoffStrategy;
 
     @Value("${cim.route.url}")
     private String routeUrl;
diff --git a/cim-client/src/main/java/com/crossoverjie/cim/client/config/BeanConfig.java b/cim-client/src/main/java/com/crossoverjie/cim/client/config/BeanConfig.java
index db0205b3..170eca64 100644
--- a/cim-client/src/main/java/com/crossoverjie/cim/client/config/BeanConfig.java
+++ b/cim-client/src/main/java/com/crossoverjie/cim/client/config/BeanConfig.java
@@ -62,7 +62,7 @@ public Client buildClient(@Qualifier("callBackThreadPool") ThreadPoolExecutor ca
                 .okHttpClient(okHttpClient)
                 .messageListener(new MsgCallBackListener(msgLogger))
                 .callbackThreadPool(callbackThreadPool)
-                .backoffStrategy(appConfiguration.getBackoffStrategy())
+                .backoffStrategy(new RandomBackoff())
                 .build();
     }