diff --git a/app/src/protyle/wysiwyg/index.ts b/app/src/protyle/wysiwyg/index.ts
index 513774e8d..c995ae40e 100644
--- a/app/src/protyle/wysiwyg/index.ts
+++ b/app/src/protyle/wysiwyg/index.ts
@@ -1510,7 +1510,7 @@ export class WYSIWYG {
                                         // 合并背景色不会修改，需要等计算完毕
                                         setTimeout(() => {
                                             if (tableBlockElement) {
-                                                selectCellElements[0].innerHTML = html + "<wbr>";
+                                                selectCellElements[0].innerHTML = (html.replace(/<br>$/, "") || "<br>") + "<wbr>";
                                                 selectCellElements[0].colSpan = colSpan;
                                                 selectCellElements[0].rowSpan = rowSpan;
                                                 focusByWbr(selectCellElements[0], document.createRange());