diff --git a/app/src/menus/protyle.ts b/app/src/menus/protyle.ts
index 795780879..8731ae6bc 100644
--- a/app/src/menus/protyle.ts
+++ b/app/src/menus/protyle.ts
@@ -1033,12 +1033,14 @@ export const tableMenu = (protyle: IProtyle, nodeElement: Element, cellElement:
             }
         });
     }
-    if (!hasNone || (hasNone && !hasRowSpan && hasColSpan) || colIsPure) {
+    if ((cellElement.parentElement.parentElement.tagName !== "THEAD" &&
+        ((!hasNone && !hasRowSpan) || (hasNone && !hasRowSpan && hasColSpan))) || colIsPure) {
         menus.push({
             type: "separator"
         });
     }
-    if ((!hasNone && !hasRowSpan) || (hasNone && !hasRowSpan && hasColSpan)) {
+    if (cellElement.parentElement.parentElement.tagName !== "THEAD" &&
+        ((!hasNone && !hasRowSpan) || (hasNone && !hasRowSpan && hasColSpan))) {
         menus.push({
             icon: "iconDeleteRow",
             label: window.siyuan.languages["delete-row"],
diff --git a/app/src/protyle/util/table.ts b/app/src/protyle/util/table.ts
index e7a53b6c2..d71b1daca 100644
--- a/app/src/protyle/util/table.ts
+++ b/app/src/protyle/util/table.ts
@@ -148,7 +148,7 @@ export const insertColumn = (protyle: IProtyle, nodeElement: Element, cellElemen
 };
 
 export const deleteRow = (protyle: IProtyle, range: Range, cellElement: HTMLElement, nodeElement: Element) => {
-    if (cellElement.tagName === "TD") {
+    if (cellElement.parentElement.parentElement.tagName !== "THEAD") {
         range.insertNode(document.createElement("wbr"));
         const html = nodeElement.outerHTML;