diff --git a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/pom.xml b/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/pom.xml
deleted file mode 100644
index 5c6d8c1a4..000000000
--- a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/pom.xml
+++ /dev/null
@@ -1,55 +0,0 @@
-
-
-
-
- com.alibaba.cloud
- spring-cloud-alibaba-examples
- ${revision}
- ../../pom.xml
-
- 4.0.0
-
- nacos-config-preference-example
- Spring Cloud Starter Alibaba Nacos Config Preference Example
- Example demonstrating how to use nacos config preference in spring boot
- jar
-
-
-
-
- org.springframework.boot
- spring-boot-starter-web
-
-
- com.alibaba.cloud
- spring-cloud-starter-alibaba-nacos-config
-
-
- org.projectlombok
- lombok
-
-
- org.springframework.boot
- spring-boot-configuration-processor
-
-
-
-
-
-
- org.springframework.boot
- spring-boot-maven-plugin
-
-
- org.apache.maven.plugins
- maven-deploy-plugin
- ${maven-deploy-plugin.version}
-
- true
-
-
-
-
-
-
diff --git a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/readme-zh.md b/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/readme-zh.md
deleted file mode 100644
index c85a4c9fa..000000000
--- a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/readme-zh.md
+++ /dev/null
@@ -1,44 +0,0 @@
-# Nacos Config Preference
-
-## 项目说明
-
-本项目演示如何使用配置偏好配置
-
-## 示例
-
-1. 启动一个 Nacos server
-添加配置 `test.yml`
-```yaml
-configdata:
- user:
- name: freeman
-```
-
-添加配置 `test2.yml`
-```yaml
-dev:
- age: 22
-```
-
-2. 设置配置偏好
-
-设置默认配置偏好
-```yaml
-spring:
- cloud:
- nacos:
- config:
- preference: remote
-```
-
-指定配置(test2.yml)设置配置偏好
-```yaml
-spring:
- config:
- import:
- - optional:nacos:test.yml
- - optional:nacos:test2.yml?preference=local
-```
-
-3. 验证
-访问 `localhost`,应该能看到值为 `freeman: 20`,因为 `name` 优先使用了配置中心配置,`age` 优先使用本地配置。
\ No newline at end of file
diff --git a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/readme.md b/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/readme.md
deleted file mode 100644
index a7b5296a4..000000000
--- a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/readme.md
+++ /dev/null
@@ -1,44 +0,0 @@
-# Nacos Config Preference
-
-## Project instruction
-
-This project demonstrates how to use config preferences.
-
-## Example
-
-1. Start a Nacos server
-add configuration `test.yml`
-```yaml
-configdata:
- user:
- name: freeman
-```
-
-add configuration `test2.yml`
-```yaml
-dev:
- age: 22
-```
-
-2. Set configuration preference
-
-Set default configuration preference
-```yaml
-spring:
- cloud:
- nacos:
- config:
- preference: remote
-```
-
-Specify configuration (test 2.yml) to set configuration preference
-```yaml
-spring:
- config:
- import:
- - optional:nacos:test.yml
- - optional:nacos:test2.yml?preference=local
-```
-
-3. Verify
-Access `localhost`, you should see the value of `freeman: 20`, because `name` uses the configuration center configuration first, and `age` uses the local configuration first.
\ No newline at end of file
diff --git a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/java/com/alibaba/cloud/configpreference/examples/ConfigPreferenceApplication.java b/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/java/com/alibaba/cloud/configpreference/examples/ConfigPreferenceApplication.java
deleted file mode 100644
index 51963cf9b..000000000
--- a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/java/com/alibaba/cloud/configpreference/examples/ConfigPreferenceApplication.java
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright 2013-2022 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.alibaba.cloud.configpreference.examples;
-
-import com.alibaba.cloud.configpreference.examples.model.UserProperties;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.boot.context.properties.EnableConfigurationProperties;
-
-/**
- * @author freeman
- */
-@SpringBootApplication
-@EnableConfigurationProperties(UserProperties.class)
-public class ConfigPreferenceApplication {
-
- public static void main(String[] args) {
- SpringApplication.run(ConfigPreferenceApplication.class, args);
- }
-
-}
diff --git a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/java/com/alibaba/cloud/configpreference/examples/controller/UserController.java b/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/java/com/alibaba/cloud/configpreference/examples/controller/UserController.java
deleted file mode 100644
index 079634d4e..000000000
--- a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/java/com/alibaba/cloud/configpreference/examples/controller/UserController.java
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright 2013-2022 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.alibaba.cloud.configpreference.examples.controller;
-
-import com.alibaba.cloud.configpreference.examples.model.UserProperties;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.cloud.context.config.annotation.RefreshScope;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-/**
- *
- *
- * @author freeman
- */
-@RestController
-@RefreshScope
-public class UserController {
-
- @Autowired
- private UserProperties userProperties;
- @Value("${dev.age}")
- private int age;
-
- @GetMapping
- public String getName() {
- return userProperties.getName() + ": " + age;
- }
-
-}
diff --git a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/java/com/alibaba/cloud/configpreference/examples/model/UserProperties.java b/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/java/com/alibaba/cloud/configpreference/examples/model/UserProperties.java
deleted file mode 100644
index 63b6eb472..000000000
--- a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/java/com/alibaba/cloud/configpreference/examples/model/UserProperties.java
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright 2013-2022 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.alibaba.cloud.configpreference.examples.model;
-
-import java.util.List;
-import java.util.Map;
-
-import lombok.Data;
-
-import org.springframework.boot.context.properties.ConfigurationProperties;
-
-/**
- *
- *
- * @author freeman
- */
-@Data
-@ConfigurationProperties(prefix = "configdata.user")
-public class UserProperties {
- private String name;
- private Integer age;
- private Map map;
- private List users;
-
- @Data
- public static class User {
- private String name;
- private Integer age;
- }
-
-}
diff --git a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/resources/application-dev.yml b/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/resources/application-dev.yml
deleted file mode 100644
index 3ea6b3fac..000000000
--- a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/resources/application-dev.yml
+++ /dev/null
@@ -1,3 +0,0 @@
-configdata:
- user:
- name: aa
\ No newline at end of file
diff --git a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/resources/application.yml b/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/resources/application.yml
deleted file mode 100644
index 323a9df69..000000000
--- a/spring-cloud-alibaba-examples/nacos-example/nacos-config-preference-example/src/main/resources/application.yml
+++ /dev/null
@@ -1,31 +0,0 @@
-server:
- port: 80
-spring:
- application:
- name: nacos-config-import-example
- cloud:
- nacos:
- config:
- group: DEFAULT_GROUP
- server-addr: 127.0.0.1:8848
- preference: remote
- config:
- import:
- - optional:nacos:test.yml
- - optional:nacos:test2.yml?preference=local
- profiles:
- active: dev
-logging:
- level:
- # print content
- com.alibaba.cloud.nacos.configdata: debug
----
-spring:
- config:
- activate:
- on-profile: dev
-configdata:
- user:
- name: bb
-dev:
- age: 20
\ No newline at end of file