diff --git a/app/src/protyle/util/insertHTML.ts b/app/src/protyle/util/insertHTML.ts
index 69b703226..adc1f1c80 100644
--- a/app/src/protyle/util/insertHTML.ts
+++ b/app/src/protyle/util/insertHTML.ts
@@ -34,7 +34,8 @@ export const insertHTML = (html: string, protyle: IProtyle, isBlock = false,
     let id = blockElement.getAttribute("data-node-id");
     range.insertNode(document.createElement("wbr"));
     let oldHTML = blockElement.outerHTML;
-    if (!isBlock && blockElement.getAttribute("data-type") === "NodeCodeBlock") {
+    if (!isBlock &&
+        (blockElement.getAttribute("data-type") === "NodeCodeBlock" || protyle.toolbar.getCurrentType(range).includes("code"))) {
         range.deleteContents();
         range.insertNode(document.createTextNode(html.replace(/\r\n|\r|\u2028|\u2029/g, "\n")));
         range.collapse(false);
diff --git a/app/src/protyle/util/paste.ts b/app/src/protyle/util/paste.ts
index 183756406..84bda1c33 100644
--- a/app/src/protyle/util/paste.ts
+++ b/app/src/protyle/util/paste.ts
@@ -169,7 +169,8 @@ export const paste = async (protyle: IProtyle, event: (ClipboardEvent | DragEven
     });
     const code = processPasteCode(textHTML, textPlain);
     const range = getEditorRange(protyle.wysiwyg.element);
-    if (nodeElement.getAttribute("data-type") === "NodeCodeBlock") {
+    if (nodeElement.getAttribute("data-type") === "NodeCodeBlock" ||
+        protyle.toolbar.getCurrentType(range).includes("code")) {
         // 粘贴在代码位置
         insertHTML(textPlain, protyle);
         return;
@@ -201,25 +202,8 @@ export const paste = async (protyle: IProtyle, event: (ClipboardEvent | DragEven
         highlightRender(protyle.wysiwyg.element);
     } else if (code) {
         if (!code.startsWith('<div data-type="NodeCodeBlock" class="code-block" data-node-id="')) {
-            const wbrElement = document.createElement("wbr");
-            range.insertNode(wbrElement);
-            const html = nodeElement.outerHTML;
-            wbrElement.remove();
-            range.deleteContents();
-            const tempElement = document.createElement("span");
-            tempElement.setAttribute("data-type", "code");
-            tempElement.textContent = Constants.ZWSP + code;
-            range.insertNode(tempElement);
-            if (!hasPreviousSibling(tempElement)) {
-                tempElement.insertAdjacentHTML("beforebegin", Constants.ZWSP);
-            }
-            if (hasNextSibling(tempElement)) {
-                tempElement.insertAdjacentHTML("afterend", "<wbr>");
-            } else {
-                tempElement.insertAdjacentHTML("afterend", Constants.ZWSP + "<wbr>");
-            }
-            updateTransaction(protyle, nodeElement.getAttribute("data-node-id"), nodeElement.outerHTML, html);
-            focusByWbr(protyle.wysiwyg.element, range);
+            // 原有代码在行内元素中粘贴会嵌套
+            insertHTML(code, protyle);
         } else {
             insertHTML(code, protyle, true);
             highlightRender(protyle.wysiwyg.element);
diff --git a/app/src/protyle/util/processCode.ts b/app/src/protyle/util/processCode.ts
index b78bc7442..3c2622535 100644
--- a/app/src/protyle/util/processCode.ts
+++ b/app/src/protyle/util/processCode.ts
@@ -33,7 +33,7 @@ export const processPasteCode = (html: string, text: string) => {
         if (/\n/.test(code)) {
             return `<div data-type="NodeCodeBlock" class="code-block" data-node-id="${Lute.NewNodeID()}"><div class="protyle-action"><span class="protyle-action--first protyle-action__language" contenteditable="false">${window.siyuan.storage[Constants.LOCAL_CODELANG]}</span><span class="fn__flex-1"></span><span class="protyle-icon protyle-icon--first protyle-action__copy"><svg><use xlink:href="#iconCopy"></use></svg></span><span class="protyle-icon protyle-icon--last protyle-action__menu"><svg><use xlink:href="#iconMore"></use></svg></span></div><div contenteditable="true" spellcheck="${window.siyuan.config.editor.spellcheck}">${code.replace(/&/g, "&amp;").replace(/</g, "&lt;")}<wbr></div><div class="protyle-attr" contenteditable="false">${Constants.ZWSP}</div></div>`;
         } else {
-            return code;
+            return "`" + code + "`";
         }
     }
     return false;