diff --git a/packages/lark-msg-tool/src/larkBody/index.ts b/packages/lark-msg-tool/src/larkBody/index.ts
index 045fd0a..5c575ea 100644
--- a/packages/lark-msg-tool/src/larkBody/index.ts
+++ b/packages/lark-msg-tool/src/larkBody/index.ts
@@ -8,6 +8,7 @@ class LarkBody {
   public isMessageEvent?: boolean
   public msgType?: LarkEvent.Message["message_type"]
   public userId?: LarkEvent.UserIdInfo["user_id"]
+  public openId?: LarkEvent.UserIdInfo["open_id"]
   public msgText: string = ""
   public rawMsgText: string = ""
   public chatType?: LarkEvent.Message["chat_type"]
@@ -39,6 +40,7 @@ class LarkBody {
       this.isMessageEvent = this.getIsMessageEvent(eventBody)
       this.msgType = this.getMsgType(eventBody)
       this.userId = this.getUserId(eventBody)
+      this.openId = this.getOpenId(eventBody)
       this.msgText = this.getMsgText(eventBody)
       this.rawMsgText = this.getRawMsgText(eventBody)
       this.chatType = this.getChatType(eventBody)
@@ -112,6 +114,15 @@ class LarkBody {
     return body?.event?.sender?.sender_id?.user_id
   }
 
+  /**
+   * 获取用户OpenId
+   * @param body 事件消息体
+   * @returns 用户OpenId
+   */
+  private getOpenId(body: LarkEvent.Data) {
+    return body?.event?.sender?.sender_id?.open_id
+  }
+
   /**
    * 获取文本内容并剔除艾特信息
    * @param body 事件消息体