diff --git a/im-center-server/src/main/java/cn/axzo/im/controller/MessageController.java b/im-center-server/src/main/java/cn/axzo/im/controller/MessageController.java
index 84b3b9a..623d288 100644
--- a/im-center-server/src/main/java/cn/axzo/im/controller/MessageController.java
+++ b/im-center-server/src/main/java/cn/axzo/im/controller/MessageController.java
@@ -264,6 +264,7 @@ public class MessageController implements MessageApi {
             }
         }
         int receiverSize = request.receivePersonsOrEmpty().size() + request.imReceiveAccountsOrEmpty().size();
+        BizAssertions.assertTrue(receiverSize >= 1, "接收人不能为空");
         boolean syncSend = request.isTrySyncSend() && receiverSize == 1;
         MessageTask.BizData bizData = MessageTask.BizData.builder()
                 .messageBody(JSON.toJSONString(request.getMessageBody()))