diff --git a/web/plugins/com.msgbyte.bbcode/src/__tests__/__snapshots__/render.spec.tsx.snap b/web/plugins/com.msgbyte.bbcode/src/__tests__/__snapshots__/render.spec.tsx.snap
new file mode 100644
index 00000000..01883699
--- /dev/null
+++ b/web/plugins/com.msgbyte.bbcode/src/__tests__/__snapshots__/render.spec.tsx.snap
@@ -0,0 +1,18 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`render <BBCode /> mention with space name 1`] = `
+<div>
+  <span
+    class="plugin-bbcode-mention-tag"
+    data-userid="6251986eab331ca2efbba9c6"
+  >
+    @
+    Notify Bot
+  </span>
+  <pre
+    style="display: inline; white-space: break-spaces;"
+  >
+     123123
+  </pre>
+</div>
+`;
diff --git a/web/plugins/com.msgbyte.bbcode/src/__tests__/render.spec.tsx b/web/plugins/com.msgbyte.bbcode/src/__tests__/render.spec.tsx
new file mode 100644
index 00000000..fffe0ae6
--- /dev/null
+++ b/web/plugins/com.msgbyte.bbcode/src/__tests__/render.spec.tsx
@@ -0,0 +1,11 @@
+import { render } from '@testing-library/react';
+import React from 'react';
+import BBCode from '../render';
+
+describe('render <BBCode />', () => {
+  test('mention with space name', () => {
+    const raw = '[at=6251986eab331ca2efbba9c6]Notify Bot[/at] 123123';
+    const wrapper = render(<BBCode plainText={raw} />);
+    expect(wrapper.container).toMatchSnapshot();
+  });
+});
diff --git a/web/plugins/com.msgbyte.bbcode/src/bbcode/__tests__/parser.spec.ts b/web/plugins/com.msgbyte.bbcode/src/bbcode/__tests__/parser.spec.ts
index 789f4a43..d1fd5a8d 100644
--- a/web/plugins/com.msgbyte.bbcode/src/bbcode/__tests__/parser.spec.ts
+++ b/web/plugins/com.msgbyte.bbcode/src/bbcode/__tests__/parser.spec.ts
@@ -56,4 +56,20 @@ describe('bbcode parser', () => {
       ]);
     });
   });
+
+  test('with space', () => {
+    const ast = bbcodeParser.parse(
+      '[at=6251986eab331ca2efbba9c6]Notify Bot[/at] 123123'
+    );
+
+    expect(ast).toMatchObject([
+      {
+        tag: 'at',
+        attrs: { at: '6251986eab331ca2efbba9c6' },
+        content: ['Notify', ' ', 'Bot'],
+      },
+      ' ',
+      '123123',
+    ]);
+  });
 });
diff --git a/web/plugins/com.msgbyte.bbcode/src/bbcode/parser.tsx b/web/plugins/com.msgbyte.bbcode/src/bbcode/parser.tsx
index cea59fa5..f22ed58b 100644
--- a/web/plugins/com.msgbyte.bbcode/src/bbcode/parser.tsx
+++ b/web/plugins/com.msgbyte.bbcode/src/bbcode/parser.tsx
@@ -87,7 +87,7 @@ class BBCodeParser {
           })
           // NOTICE: 这里排序看起来好像有问题，但是attrs的顺序是有序的，所以没有问题
           .join('');
-        return `[${tag}${attrsStr}]${content}[/${tag}]`;
+        return `[${tag}${attrsStr}]${content.join('')}[/${tag}]`;
       })
       .join('');
   }