diff --git a/src/views/newMap/displayNew/demon/messageBoard.vue b/src/views/newMap/displayNew/demon/messageBoard.vue
index 0d5cb2c7a..ca0741d54 100644
--- a/src/views/newMap/displayNew/demon/messageBoard.vue
+++ b/src/views/newMap/displayNew/demon/messageBoard.vue
@@ -153,6 +153,10 @@ export default {
                 this.$message.error('留言内容超出最大长度！');
                 return;
             }
+            if (!this.content) {
+                this.$message.error('留言内容不能为空！');
+                return;
+            }
             answerPost({postId: 1, content: this.content}).then(resp => {
                 this.pageNum = Math.ceil(resp.data / this.pageSize);
                 this.handleCurrentChange();
@@ -305,7 +309,7 @@ export default {
         changeCommentContent(val) {
             if (this.replyUserName && val.startsWith(this.replyUserName)) {
                 this.commentContentNoName = val.slice(this.replyUserName.length);
-            } else {
+            } else if (this.replyUserName) {
                 this.commentContent = this.replyUserName + this.commentContentNoName;
             }
         }