diff --git a/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/dal/dataobject/message/ImChannelMessageDO.java b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/dal/dataobject/message/ImChannelMessageDO.java
index c7f4171..2572828 100644
--- a/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/dal/dataobject/message/ImChannelMessageDO.java
+++ b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/dal/dataobject/message/ImChannelMessageDO.java
@@ -2,6 +2,8 @@ package cn.iocoder.yudao.module.im.dal.dataobject.message;
 
 import cn.iocoder.yudao.framework.mybatis.core.dataobject.BaseDO;
 import cn.iocoder.yudao.framework.mybatis.core.type.LongListTypeHandler;
+import cn.iocoder.yudao.module.im.dal.dataobject.channel.ImChannelDO;
+import cn.iocoder.yudao.module.im.dal.dataobject.channel.ImChannelMaterialDO;
 import cn.iocoder.yudao.module.im.enums.message.ImMessageTypeEnum;
 import com.baomidou.mybatisplus.annotation.KeySequence;
 import com.baomidou.mybatisplus.annotation.TableField;
diff --git a/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/service/message/ImChannelMessageServiceImpl.java b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/service/message/ImChannelMessageServiceImpl.java
index f8e3e51..0ef7ff2 100644
--- a/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/service/message/ImChannelMessageServiceImpl.java
+++ b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/service/message/ImChannelMessageServiceImpl.java
@@ -56,8 +56,9 @@ public class ImChannelMessageServiceImpl implements ImChannelMessageService {
         // 1. 校验素材存在
         ImChannelMaterialDO material = channelMaterialService.validateMaterialExists(reqVO.getMaterialId());
 
-        // 2.1 组装 payload（不带富文本正文）；字段同名直接 BeanUtils 拷贝
-        String payloadJson = JsonUtils.toJsonString(BeanUtils.toBean(material, MaterialMessage.class));
+        // 2.1 组装 payload（不带富文本正文）；字段同名直接 BeanUtils 拷贝，materialId 单独 set 以兼容转发场景
+        MaterialMessage payload = BeanUtils.toBean(material, MaterialMessage.class).setMaterialId(material.getId());
+        String payloadJson = JsonUtils.toJsonString(payload);
         // 2.2 落库 1 行 message；reqVO 同名字段（materialId / receiverUserIds）自动拷贝，剩余字段补 set
         ImChannelMessageDO message = BeanUtils.toBean(reqVO, ImChannelMessageDO.class).setChannelId(material.getChannelId())
                 .setType(ImMessageTypeEnum.MATERIAL.getType()).setContent(payloadJson).setSendTime(LocalDateTime.now());
diff --git a/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/service/websocket/dto/message/MaterialMessage.java b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/service/websocket/dto/message/MaterialMessage.java
index 42af051..9ef4308 100644
--- a/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/service/websocket/dto/message/MaterialMessage.java
+++ b/yudao-module-im/src/main/java/cn/iocoder/yudao/module/im/service/websocket/dto/message/MaterialMessage.java
@@ -15,13 +15,22 @@ import lombok.experimental.Accessors;
 public class MaterialMessage {
 
     /**
+     * 素材编号
+     */
+    private Long materialId;
+    /**
+     * 频道编号
+     * <p>
+     * 冗余到 payload 内；转发到私聊 / 群聊后客户端用本字段定位频道，渲染卡片底部的频道头像 + 名称
+     */
+    private Long channelId;
+    /**
      * 素材内容类型
      * <p>
      * 枚举 {@link cn.iocoder.yudao.module.im.enums.channel.ImChannelMaterialTypeEnum}
      * 客户端按本字段判定点击行为：CONTENT 走站内详情页拉富文本；LINK 跳 url
      */
     private Integer type;
-
     /**
      * 标题
      */