diff --git a/CHANGELOG.md b/CHANGELOG.md
index a16ddae21..44c0b887e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,3 +6,4 @@
 - [Feature: Optimized configuration update](https://github.com/Tencent/spring-cloud-tencent/pull/423)
 - [Feature: add feature-env plugin & add spring cloud gateway staining plugin](https://github.com/Tencent/spring-cloud-tencent/pull/428)
 - [Optimize: add EncodeTransferMedataRestTemplateInterceptor to RestTemplate](https://github.com/Tencent/spring-cloud-tencent/pull/434)
+- [Optimize: Specification apollo code reference notes](https://github.com/Tencent/spring-cloud-tencent/pull/442)
diff --git a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/annotation/PolarisConfigAnnotationProcessor.java b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/annotation/PolarisConfigAnnotationProcessor.java
index 59bbb994c..52704cc9b 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/annotation/PolarisConfigAnnotationProcessor.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/annotation/PolarisConfigAnnotationProcessor.java
@@ -40,7 +40,7 @@ import static com.tencent.cloud.polaris.config.listener.PolarisConfigListenerCon
 
 /**
  * {@link PolarisConfigAnnotationProcessor} implementation for spring .
- * <p>Refer to the Apollo project implementation：
+ * <p>This source file was reference from：
  * <code><a href=https://github.com/apolloconfig/apollo/blob/master/apollo-client/src/main/java/com/ctrip/framework/apollo/spring/annotation/ApolloAnnotationProcessor.java>
  *     ApolloAnnotationProcessor</a></code>
  * @author <a href="mailto:iskp.me@gmail.com">Palmer Xu</a> 2022-06-07
diff --git a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/annotation/PolarisConfigKVFileChangeListener.java b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/annotation/PolarisConfigKVFileChangeListener.java
index a324c4d78..d5e291996 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/annotation/PolarisConfigKVFileChangeListener.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/annotation/PolarisConfigKVFileChangeListener.java
@@ -26,7 +26,7 @@ import java.lang.annotation.Target;
 
 /**
  * Configuring the change listener annotation.
- * <p>Refer to the Apollo project implementation：
+ * <p>This source file was reference from：
  * <code><a href=https://github.com/apolloconfig/apollo/blob/master/apollo-client/src/main/java/com/ctrip/framework/apollo/spring/annotation/ApolloAnnotationProcessor.java>
  *     ApolloAnnotationProcessor</a></code>
  * @author Palmer Xu 2022-05-31
diff --git a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/listener/PolarisConfigListenerContext.java b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/listener/PolarisConfigListenerContext.java
index 15a9a9336..6bd266bf8 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/listener/PolarisConfigListenerContext.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/listener/PolarisConfigListenerContext.java
@@ -49,7 +49,7 @@ import static com.tencent.polaris.configuration.api.core.ChangeType.MODIFIED;
 
 /**
  * Polaris Config Listener Context Defined .
- * <p>Refer to the Apollo project implementation：
+ * <p>This source file was reference from：
  * <code><a href=https://github.com/apolloconfig/apollo/blob/master/apollo-client/src/main/java/com/ctrip/framework/apollo/internals/AbstractConfig.java>
  *     AbstractConfig</a></code>
  *
diff --git a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/annotation/SpringValueProcessor.java b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/annotation/SpringValueProcessor.java
index 90e83f080..d7d09912b 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/annotation/SpringValueProcessor.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/annotation/SpringValueProcessor.java
@@ -30,6 +30,9 @@ import org.springframework.context.annotation.Bean;
 
 /**
  * Spring value processor of field or method which has @Value and xml config placeholders.
+ * <br/>
+ * <br/>
+ * This source file was originally from:
  * <code><a href=https://github.com/apolloconfig/apollo/blob/master/apollo-client/src/main/java/com/ctrip/framework/apollo/spring/annotation/SpringValueProcessor.java>
  *     SpringValueProcessor</a></code>
  *
diff --git a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/PlaceholderHelper.java b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/PlaceholderHelper.java
index 0caf41b1d..2d7515661 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/PlaceholderHelper.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/PlaceholderHelper.java
@@ -31,6 +31,9 @@ import org.springframework.util.StringUtils;
 
 /**
  * Placeholder helper functions.
+ * <br/>
+ * <br/>
+ * This source file was originally from:
  * <code><a href=https://github.com/apolloconfig/apollo/blob/master/apollo-client/src/main/java/com/ctrip/framework/apollo/spring/property/PlaceholderHelper.java>
  *     PlaceholderHelper</a></code>
  *
diff --git a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValue.java b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValue.java
index 501c58eef..1f0396112 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValue.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValue.java
@@ -27,6 +27,9 @@ import org.springframework.core.MethodParameter;
 
 /**
  * Spring @Value method info.
+ * <br/>
+ * <br/>
+ * This source file was originally from:
  * <code><a href=https://github.com/apolloconfig/apollo/blob/master/apollo-client/src/main/java/com/ctrip/framework/apollo/spring/property/SpringValue.java>
  *     SpringValue</a></code>
  *
diff --git a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValueDefinition.java b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValueDefinition.java
index 4f73edb77..a3382fd5d 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValueDefinition.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValueDefinition.java
@@ -19,6 +19,9 @@ package com.tencent.cloud.polaris.config.spring.property;
 
 /**
  * Spring value.
+ * <br/>
+ * <br/>
+ * This source file was originally from:
  * <code><a href=https://github.com/apolloconfig/apollo/blob/master/apollo-client/src/main/java/com/ctrip/framework/apollo/spring/property/SpringValueDefinition.java>
  *     SpringValueDefinition</a></code>
  *
diff --git a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValueDefinitionProcessor.java b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValueDefinitionProcessor.java
index 4b814266a..56ed62391 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValueDefinitionProcessor.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValueDefinitionProcessor.java
@@ -40,12 +40,13 @@ import org.springframework.beans.factory.support.BeanDefinitionRegistryPostProce
  * To process xml config placeholders, e.g.
  *
  * <pre>
- *  &lt;bean class=&quot;com.ctrip.framework.apollo.demo.spring.xmlConfigDemo.bean.XmlBean&quot;&gt;
+ *  &lt;bean class=&quot;com.demo.bean.XmlBean&quot;&gt;
  *    &lt;property name=&quot;timeout&quot; value=&quot;${timeout:200}&quot;/&gt;
  *    &lt;property name=&quot;batch&quot; value=&quot;${batch:100}&quot;/&gt;
  *  &lt;/bean&gt;
  * </pre>
  *
+ * This source file was originally from:
  * <code><a href=https://github.com/apolloconfig/apollo/blob/master/apollo-client/src/main/java/com/ctrip/framework/apollo/spring/property/SpringValueDefinitionProcessor.java>
  *     SpringValueDefinitionProcessor</a></code>
  *
diff --git a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValueRegistry.java b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValueRegistry.java
index 6bf09c770..9155c923c 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValueRegistry.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/spring/property/SpringValueRegistry.java
@@ -36,6 +36,9 @@ import org.springframework.beans.factory.BeanFactory;
 
 /**
  * Spring value auto registry.
+ * <br/>
+ * <br/>
+ * This source file was originally from:
  * <code><a href=https://github.com/apolloconfig/apollo/blob/master/apollo-client/src/main/java/com/ctrip/framework/apollo/spring/property/SpringValueRegistry.java>
  *     SpringValueRegistry</a></code>
  *