diff --git a/app/src/protyle/wysiwyg/keydown.ts b/app/src/protyle/wysiwyg/keydown.ts
index 4acc32692..74456a6cc 100644
--- a/app/src/protyle/wysiwyg/keydown.ts
+++ b/app/src/protyle/wysiwyg/keydown.ts
@@ -90,7 +90,7 @@ export const keydown = (protyle: IProtyle, editorElement: HTMLElement) => {
             event.code !== "") { // 悬浮工具会触发但 code 为空 https://github.com/siyuan-note/siyuan/issues/6573
             hideElements(["toolbar"], protyle);
         }
-        const range = getEditorRange(protyle.wysiwyg.element);
+        let range = getEditorRange(protyle.wysiwyg.element);
         const nodeElement = hasClosestBlock(range.startContainer);
         if (!nodeElement) {
             return;
@@ -134,9 +134,12 @@ export const keydown = (protyle: IProtyle, editorElement: HTMLElement) => {
         if (event.key !== "PageUp" && event.key !== "PageDown" && event.key !== "Home" && event.key !== "End" && event.key.indexOf("Arrow") === -1 &&
             event.key !== "Escape" && event.key !== "Shift" && event.key !== "Meta" && event.key !== "Alt" && event.key !== "Control" && event.key !== "CapsLock" &&
             !/^F\d{1,2}$/.test(event.key) && typeof protyle.wysiwyg.lastHTMLs[nodeElement.getAttribute("data-node-id")] === "undefined") {
+            const cloneRange = range.cloneRange();
             range.insertNode(document.createElement("wbr"));
             protyle.wysiwyg.lastHTMLs[nodeElement.getAttribute("data-node-id")] = nodeElement.outerHTML;
             nodeElement.querySelector("wbr").remove();
+            // 光标位于引用结尾后 ctrl+b 偶尔会失效
+            range = cloneRange;
         }
 
         if (bindMenuKeydown(event)) {