diff --git a/broker/config/wildfirechat.conf b/broker/config/wildfirechat.conf
index 36f128c3..cce17d22 100755
--- a/broker/config/wildfirechat.conf
+++ b/broker/config/wildfirechat.conf
@@ -193,8 +193,8 @@ friend.disable_search false
 ##禁止按照昵称搜索用户。
 friend.disable_nick_name_search false
 
-##禁止按照用户id搜索用户，默认为true。
-friend.disable_user_id_search true
+##禁止按照用户id搜索用户，默认为false。
+friend.disable_user_id_search false
 
 ##禁止发送好友邀请，通过server api添加好友不受此限制(force参数需要为true)
 friend.disable_friend_request false
diff --git a/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java b/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
index 101a7dda..2b58d603 100755
--- a/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
+++ b/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
@@ -332,7 +332,7 @@ public class MemoryMessagesStore implements IMessagesStore {
             printMissConfigLog(FRIEND_Disable_NickName_Search, mDisableNicknameSearch + "");
         }
         try {
-            mDisableUserIdSearch = Boolean.parseBoolean(m_Server.getConfig().getProperty(BrokerConstants.FRIEND_Disable_UserId_Search, "true"));
+            mDisableUserIdSearch = Boolean.parseBoolean(m_Server.getConfig().getProperty(BrokerConstants.FRIEND_Disable_UserId_Search, "false"));
         } catch (Exception e) {
 
         }
diff --git a/distribution/src/main/resources/wildfirechat.conf b/distribution/src/main/resources/wildfirechat.conf
index fe91b7f8..501656e8 100755
--- a/distribution/src/main/resources/wildfirechat.conf
+++ b/distribution/src/main/resources/wildfirechat.conf
@@ -190,8 +190,8 @@ friend.disable_search false
 ##禁止按照昵称搜索用户。
 friend.disable_nick_name_search false
 
-##禁止按照用户id搜索用户，默认为true。
-friend.disable_user_id_search true
+##禁止按照用户id搜索用户，默认为false。
+friend.disable_user_id_search false
 
 ##禁止发送好友邀请，通过server api添加好友不受此限制(force参数需要为true)
 friend.disable_friend_request false