diff --git a/src/main/java/com/monkeyk/sos/domain/oauth/CustomJdbcTokenStore.java b/src/main/java/com/monkeyk/sos/domain/oauth/CustomJdbcTokenStore.java
new file mode 100644
index 0000000..466c4a4
--- /dev/null
+++ b/src/main/java/com/monkeyk/sos/domain/oauth/CustomJdbcTokenStore.java
@@ -0,0 +1,39 @@
+package com.monkeyk.sos.domain.oauth;
+
+import org.springframework.cache.annotation.CacheEvict;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.security.oauth2.common.OAuth2AccessToken;
+import org.springframework.security.oauth2.provider.OAuth2Authentication;
+import org.springframework.security.oauth2.provider.token.store.JdbcTokenStore;
+
+import javax.sql.DataSource;
+
+import static com.monkeyk.sos.infrastructure.CacheConstants.*;
+
+/**
+ * 2016/7/26
+ *
+ * @author Shengzhao Li
+ */
+public class CustomJdbcTokenStore extends JdbcTokenStore {
+
+
+    public CustomJdbcTokenStore(DataSource dataSource) {
+        super(dataSource);
+    }
+
+
+    @Cacheable(value = OAUTH2_AUTHENTICATION_CACHE, key = "#token.getValue()")
+    public OAuth2Authentication readAuthentication(OAuth2AccessToken token) {
+        return super.readAuthentication(token);
+    }
+
+
+    @Cacheable(value = OAUTH2_AUTHENTICATION_CACHE, key = "#token")
+    public OAuth2Authentication readAuthentication(String token) {
+        return super.readAuthentication(token);
+    }
+
+
+
+}
diff --git a/src/main/java/com/monkeyk/sos/infrastructure/CacheConstants.java b/src/main/java/com/monkeyk/sos/infrastructure/CacheConstants.java
index 502e6ea..8a3721a 100644
--- a/src/main/java/com/monkeyk/sos/infrastructure/CacheConstants.java
+++ b/src/main/java/com/monkeyk/sos/infrastructure/CacheConstants.java
@@ -12,22 +12,27 @@ package com.monkeyk.sos.infrastructure;
 public abstract class CacheConstants {
 
     /**
-     * client Details Cache
+     * client Details Cache, key is clientId
      */
     public static final String CLIENT_DETAILS_CACHE = "clientDetailsCache";
 
     /**
-     * access Token Cache
+     * access Token Cache, key is token
      */
     public static final String ACCESS_TOKEN_CACHE = "accessTokenCache";
 
     /**
-     * authorization Code Cache
+     * OAuth2Authentication Cache, key is token
+     */
+    public static final String OAUTH2_AUTHENTICATION_CACHE = "OAuth2AuthenticationCache";
+
+    /**
+     * authorization Code Cache, key is code
      */
     public static final String AUTHORIZATION_CODE_CACHE = "authorizationCodeCache";
 
     /**
-     * user Cache
+     * user Cache, key is username
      */
     public static final String USER_CACHE = "userCache";
 
diff --git a/src/main/resources/spring/security.xml b/src/main/resources/spring/security.xml
index 760d3ea..012c00a 100644
--- a/src/main/resources/spring/security.xml
+++ b/src/main/resources/spring/security.xml
@@ -92,7 +92,7 @@
 
     <!--Config token services-->
     <!--<beans:bean id="tokenStore" class="org.springframework.security.oauth2.provider.token.InMemoryTokenStore"/>-->
-    <beans:bean id="tokenStore" class="org.springframework.security.oauth2.provider.token.store.JdbcTokenStore">
+    <beans:bean id="tokenStore" class="com.monkeyk.sos.domain.oauth.CustomJdbcTokenStore">
         <beans:constructor-arg index="0" ref="dataSource"/>
     </beans:bean>