diff --git a/app/src/protyle/wysiwyg/input.ts b/app/src/protyle/wysiwyg/input.ts
index 2c261d68d..b1f97b09f 100644
--- a/app/src/protyle/wysiwyg/input.ts
+++ b/app/src/protyle/wysiwyg/input.ts
@@ -151,7 +151,7 @@ export const input = async (protyle: IProtyle, blockElement: HTMLElement, range:
             if (trimStartText.indexOf("\n") === -1 && trimStartText.replace(/·|~/g, "`").replace(/^`{3,}/g, "").indexOf("`") > -1) {
                 // ```test` 不处理，正常渲染为段落块
             } else {
-                let replaceInnerHTML = editElement.innerHTML.replace(/^(~|·|`){3,}/g, "```").replace(/\n(~|·|`){3,}/g, "\n```").trim();
+                let replaceInnerHTML = editElement.innerHTML.trim().replace(/^(~|·|`){3,}/g, "```").replace(/\n(~|·|`){3,}/g, "\n```").trim();
                 if (!replaceInnerHTML.endsWith("\n```")) {
                     replaceInnerHTML = replaceInnerHTML.replace("<wbr>", "") + "<wbr>\n```";
                 }