diff --git a/app/src/boot/globalEvent/keydown.ts b/app/src/boot/globalEvent/keydown.ts
index 59f485005..8faa3c2e8 100644
--- a/app/src/boot/globalEvent/keydown.ts
+++ b/app/src/boot/globalEvent/keydown.ts
@@ -10,7 +10,7 @@ import {
 import {newFile} from "../../util/newFile";
 import {Constants} from "../../constants";
 import {openSetting} from "../../config";
-import {getDockByType, getInstanceById} from "../../layout/util";
+import {copyTab, getDockByType, getInstanceById, resizeTabs} from "../../layout/util";
 import {Tab} from "../../layout/Tab";
 import {Editor} from "../../editor";
 import {setEditMode} from "../../protyle/util/setEditMode";
@@ -1329,6 +1329,31 @@ export const windowKeyDown = (app: App, event: KeyboardEvent) => {
         return;
     }
 
+    if ((matchHotKey(window.siyuan.config.keymap.general.splitLR.custom, event) ||
+        matchHotKey(window.siyuan.config.keymap.general.splitMoveR.custom, event) ||
+        matchHotKey(window.siyuan.config.keymap.general.splitTB.custom, event) ||
+        matchHotKey(window.siyuan.config.keymap.general.splitMoveB.custom, event)) && !event.repeat) {
+        event.preventDefault();
+        const activeTabElement = document.querySelector(".layout__wnd--active .item--focus");
+        if (activeTabElement) {
+            const tab = getInstanceById(activeTabElement.getAttribute("data-id")) as Tab;
+            if (tab) {
+                if (matchHotKey(window.siyuan.config.keymap.general.splitLR.custom, event)) {
+                    tab.parent.split("lr").addTab(copyTab(app, tab));
+                } else if (matchHotKey(window.siyuan.config.keymap.general.splitTB.custom, event)) {
+                    tab.parent.split("tb").addTab(copyTab(app, tab));
+                } else if (tab.parent.children.length > 1) {
+                    const newWnd = tab.parent.split(matchHotKey(window.siyuan.config.keymap.general.splitMoveB.custom, event) ? "tb" : "lr");
+                    newWnd.headersElement.append(tab.headElement);
+                    newWnd.headersElement.parentElement.classList.remove("fn__none");
+                    newWnd.moveTab(tab);
+                    resizeTabs();
+                }
+            }
+        }
+        return;
+    }
+
     if (matchHotKey(window.siyuan.config.keymap.general.stickSearch.custom, event)) {
         if (getSelection().rangeCount > 0) {
             const range = getSelection().getRangeAt(0);
diff --git a/app/src/constants.ts b/app/src/constants.ts
index 3c4a7a4d2..8ac462424 100644
--- a/app/src/constants.ts
+++ b/app/src/constants.ts
@@ -256,6 +256,10 @@ export abstract class Constants {
             move: {default: "", custom: ""},
             selectOpen1: {default: "", custom: ""},
             toggleDock: {default: "", custom: ""},
+            splitLR: {default: "", custom: ""},
+            splitMoveR: {default: "", custom: ""},
+            splitTB: {default: "", custom: ""},
+            splitMoveB: {default: "", custom: ""},
         },
         editor: {
             general: {
diff --git a/app/src/menus/tab.ts b/app/src/menus/tab.ts
index 852a2c324..35b35d62a 100644
--- a/app/src/menus/tab.ts
+++ b/app/src/menus/tab.ts
@@ -119,6 +119,7 @@ const closeMenu = (tab: Tab) => {
 const splitSubMenu = (app: App, tab: Tab) => {
     const subMenus: IMenu[] = [{
         icon: "iconSplitLR",
+        accelerator: window.siyuan.config.keymap.general.splitLR.custom,
         label: window.siyuan.languages.splitLR,
         click: () => {
             tab.parent.split("lr").addTab(copyTab(app, tab));
@@ -127,6 +128,7 @@ const splitSubMenu = (app: App, tab: Tab) => {
     if (tab.parent.children.length > 1) {
         subMenus.push({
             icon: "iconLayoutRight",
+            accelerator: window.siyuan.config.keymap.general.splitMoveR.custom,
             label: window.siyuan.languages.splitMoveR,
             click: () => {
                 const newWnd = tab.parent.split("lr");
@@ -139,6 +141,7 @@ const splitSubMenu = (app: App, tab: Tab) => {
     }
     subMenus.push({
         icon: "iconSplitTB",
+        accelerator: window.siyuan.config.keymap.general.splitTB.custom,
         label: window.siyuan.languages.splitTB,
         click: () => {
             tab.parent.split("tb").addTab(copyTab(app, tab));
@@ -148,6 +151,7 @@ const splitSubMenu = (app: App, tab: Tab) => {
     if (tab.parent.children.length > 1) {
         subMenus.push({
             icon: "iconLayoutBottom",
+            accelerator: window.siyuan.config.keymap.general.splitMoveB.custom,
             label: window.siyuan.languages.splitMoveB,
             click: () => {
                 const newWnd = tab.parent.split("tb");