diff --git a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpGroupRobotService.java b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpGroupRobotService.java
index bc6e13054..e396ed58a 100644
--- a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpGroupRobotService.java
+++ b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/WxCpGroupRobotService.java
@@ -98,6 +98,15 @@ public interface WxCpGroupRobotService {
    */
   void sendFile(String webhookUrl, String mediaId) throws WxErrorException;
 
+  /**
+   * 发送文件类型的消息
+   *
+   * @param webhookUrl webhook地址
+   * @param mediaId    语音文件id
+   * @throws WxErrorException 异常
+   */
+  void sendVoice(String webhookUrl, String mediaId) throws WxErrorException;
+
   /**
    * 发送模板卡片消息
    * @param webhookUrl
diff --git a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/impl/WxCpGroupRobotServiceImpl.java b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/impl/WxCpGroupRobotServiceImpl.java
index 30e447499..21246d241 100644
--- a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/impl/WxCpGroupRobotServiceImpl.java
+++ b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/api/impl/WxCpGroupRobotServiceImpl.java
@@ -92,6 +92,14 @@ public class WxCpGroupRobotServiceImpl implements WxCpGroupRobotService {
       .setMediaId(mediaId).toJson());
   }
 
+
+  @Override
+  public void sendVoice(String webhookUrl, String mediaId) throws WxErrorException {
+    this.cpService.postWithoutToken(webhookUrl, new WxCpGroupRobotMessage()
+      .setMsgType(GroupRobotMsgType.VOICE)
+      .setMediaId(mediaId).toJson());
+  }
+
   @Override
   public void sendTemplateCardMessage(String webhookUrl, WxCpGroupRobotMessage wxCpGroupRobotMessage) throws WxErrorException {
     this.cpService.postWithoutToken(webhookUrl, wxCpGroupRobotMessage.toJson());
diff --git a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/constant/WxCpConsts.java b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/constant/WxCpConsts.java
index 7487c6143..99191fe1a 100644
--- a/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/constant/WxCpConsts.java
+++ b/weixin-java-cp/src/main/java/me/chanjar/weixin/cp/constant/WxCpConsts.java
@@ -536,6 +536,11 @@ public class WxCpConsts {
      */
     public static final String FILE = "file";
 
+    /**
+     * 文件类型消息.
+     */
+    public static final String VOICE = "voice";
+
     /**
      * 模版类型消息.
      */