diff --git a/src/components/markdown-preview/markdown-preview.vue b/src/components/markdown-preview/markdown-preview.vue
index 0ce9ed50..27615aff 100644
--- a/src/components/markdown-preview/markdown-preview.vue
+++ b/src/components/markdown-preview/markdown-preview.vue
@@ -24,7 +24,8 @@
 		watch:{
 			mdString: {
 				handler(val){
-					this.contentHtml = this.parseContent(val)
+					let _text = val.replace(/</g,'&lt;').replace(/>/g,'&gt;')
+					this.contentHtml = this.parseContent(_text)
 				},
 				deep: true,
 				immediate: true