diff --git a/src/main/resolve/theme.ts b/src/main/resolve/theme.ts
index 777179e..0c6b8eb 100644
--- a/src/main/resolve/theme.ts
+++ b/src/main/resolve/theme.ts
@@ -1,4 +1,4 @@
-import { copyFile, readdir, readFile } from 'fs/promises'
+import { copyFile, readdir, readFile, writeFile } from 'fs/promises'
 import { themesDir } from '../utils/dirs'
 import path from 'path'
 import axios from 'axios'
@@ -56,9 +56,17 @@ export async function importThemes(files: string[]): Promise<void> {
   }
 }
 
+export async function readTheme(theme: string): Promise<string> {
+  if (!existsSync(path.join(themesDir(), theme))) return ''
+  return await readFile(path.join(themesDir(), theme), 'utf-8')
+}
+
+export async function writeTheme(theme: string, css: string): Promise<void> {
+  await writeFile(path.join(themesDir(), theme), css)
+}
+
 export async function applyTheme(theme: string): Promise<void> {
-  if (!existsSync(path.join(themesDir(), theme))) return
-  const css = await readFile(path.join(themesDir(), theme), 'utf-8')
+  const css = await readTheme(theme)
   await mainWindow?.webContents.removeInsertedCSS(insertedCSSKey || '')
   insertedCSSKey = await mainWindow?.webContents.insertCSS(css)
 }
diff --git a/src/main/utils/ipc.ts b/src/main/utils/ipc.ts
index ed9bf95..d6a19c4 100644
--- a/src/main/utils/ipc.ts
+++ b/src/main/utils/ipc.ts
@@ -65,7 +65,14 @@ import { getInterfaces } from '../sys/interface'
 import { copyEnv } from '../resolve/tray'
 import { registerShortcut } from '../resolve/shortcut'
 import { mainWindow } from '..'
-import { applyTheme, fetchThemes, importThemes, resolveThemes } from '../resolve/theme'
+import {
+  applyTheme,
+  fetchThemes,
+  importThemes,
+  readTheme,
+  resolveThemes,
+  writeTheme
+} from '../resolve/theme'
 import { subStoreCollections, subStoreSubs } from '../core/subStoreApi'
 import { logDir } from './dirs'
 import path from 'path'
@@ -205,6 +212,8 @@ export function registerIpcMainHandlers(): void {
   ipcMain.handle('resolveThemes', () => ipcErrorWrapper(resolveThemes)())
   ipcMain.handle('fetchThemes', () => ipcErrorWrapper(fetchThemes)())
   ipcMain.handle('importThemes', (_e, file) => ipcErrorWrapper(importThemes)(file))
+  ipcMain.handle('readTheme', (_e, theme) => ipcErrorWrapper(readTheme)(theme))
+  ipcMain.handle('writeTheme', (_e, theme, css) => ipcErrorWrapper(writeTheme)(theme, css))
   ipcMain.handle('applyTheme', (_e, theme) => ipcErrorWrapper(applyTheme)(theme))
   ipcMain.handle('copyEnv', (_e, type) => ipcErrorWrapper(copyEnv)(type))
   ipcMain.handle('alert', (_e, msg) => {
diff --git a/src/renderer/src/components/settings/css-editor-modal.tsx b/src/renderer/src/components/settings/css-editor-modal.tsx
new file mode 100644
index 0000000..874f3d4
--- /dev/null
+++ b/src/renderer/src/components/settings/css-editor-modal.tsx
@@ -0,0 +1,54 @@
+import { Modal, ModalContent, ModalHeader, ModalBody, ModalFooter, Button } from '@nextui-org/react'
+import { BaseEditor } from '@renderer/components/base/base-editor'
+import { readTheme } from '@renderer/utils/ipc'
+import React, { useEffect, useState } from 'react'
+interface Props {
+  theme: string
+  onCancel: () => void
+  onConfirm: (script: string) => void
+}
+const CSSEditorModal: React.FC<Props> = (props) => {
+  const { theme, onCancel, onConfirm } = props
+  const [currData, setCurrData] = useState('')
+
+  useEffect(() => {
+    if (theme) {
+      readTheme(theme).then((css) => {
+        setCurrData(css)
+      })
+    }
+  }, [theme])
+
+  return (
+    <Modal
+      backdrop="blur"
+      classNames={{ backdrop: 'top-[48px]' }}
+      size="5xl"
+      hideCloseButton
+      isOpen={true}
+      onOpenChange={onCancel}
+      scrollBehavior="inside"
+    >
+      <ModalContent className="h-full w-[calc(100%-100px)]">
+        <ModalHeader className="flex pb-0">编辑主题</ModalHeader>
+        <ModalBody className="h-full">
+          <BaseEditor
+            language="css"
+            value={currData}
+            onChange={(value) => setCurrData(value || '')}
+          />
+        </ModalBody>
+        <ModalFooter className="pt-0">
+          <Button size="sm" variant="light" onPress={onCancel}>
+            取消
+          </Button>
+          <Button size="sm" color="primary" onPress={() => onConfirm(currData)}>
+            确认
+          </Button>
+        </ModalFooter>
+      </ModalContent>
+    </Modal>
+  )
+}
+
+export default CSSEditorModal
diff --git a/src/renderer/src/components/settings/general-config.tsx b/src/renderer/src/components/settings/general-config.tsx
index b478b76..d617ae6 100644
--- a/src/renderer/src/components/settings/general-config.tsx
+++ b/src/renderer/src/components/settings/general-config.tsx
@@ -5,6 +5,7 @@ import { Button, Input, Select, SelectItem, Switch, Tab, Tabs, Tooltip } from '@
 import { BiCopy, BiSolidFileImport } from 'react-icons/bi'
 import useSWR from 'swr'
 import {
+  applyTheme,
   checkAutoRun,
   copyEnv,
   disableAutoRun,
@@ -14,17 +15,21 @@ import {
   importThemes,
   relaunchApp,
   resolveThemes,
-  restartCore
+  restartCore,
+  writeTheme
 } from '@renderer/utils/ipc'
 import { useAppConfig } from '@renderer/hooks/use-app-config'
 import { platform } from '@renderer/utils/init'
 import { useTheme } from 'next-themes'
 import { IoIosHelpCircle, IoMdCloudDownload } from 'react-icons/io'
+import { MdEditDocument } from 'react-icons/md'
+import CSSEditorModal from './css-editor-modal'
 
 const GeneralConfig: React.FC = () => {
   const { data: enable, mutate: mutateEnable } = useSWR('checkAutoRun', checkAutoRun)
   const { appConfig, patchAppConfig } = useAppConfig()
   const [customThemes, setCustomThemes] = useState<{ key: string; label: string }[]>()
+  const [openCSSEditor, setOpenCSSEditor] = useState(false)
   const [fetching, setFetching] = useState(false)
   const { setTheme } = useTheme()
   const {
@@ -49,6 +54,17 @@ const GeneralConfig: React.FC = () => {
 
   return (
     <>
+      {openCSSEditor && (
+        <CSSEditorModal
+          theme={customTheme}
+          onCancel={() => setOpenCSSEditor(false)}
+          onConfirm={async (css: string) => {
+            await writeTheme(customTheme, css)
+            await applyTheme(customTheme)
+            setOpenCSSEditor(false)
+          }}
+        />
+      )}
       <SettingCard>
         <SettingItem title="开机自启" divider>
           <Switch
@@ -261,6 +277,17 @@ const GeneralConfig: React.FC = () => {
               >
                 <BiSolidFileImport className="text-lg" />
               </Button>
+              <Button
+                size="sm"
+                isIconOnly
+                title="编辑主题"
+                variant="light"
+                onPress={async () => {
+                  setOpenCSSEditor(true)
+                }}
+              >
+                <MdEditDocument className="text-lg" />
+              </Button>
             </>
           }
         >
diff --git a/src/renderer/src/utils/ipc.ts b/src/renderer/src/utils/ipc.ts
index 2cb697e..7832cd0 100644
--- a/src/renderer/src/utils/ipc.ts
+++ b/src/renderer/src/utils/ipc.ts
@@ -343,6 +343,14 @@ export async function importThemes(files: string[]): Promise<void> {
   return ipcErrorWrapper(await window.electron.ipcRenderer.invoke('importThemes', files))
 }
 
+export async function readTheme(theme: string): Promise<string> {
+  return ipcErrorWrapper(await window.electron.ipcRenderer.invoke('readTheme', theme))
+}
+
+export async function writeTheme(theme: string, css: string): Promise<void> {
+  return ipcErrorWrapper(await window.electron.ipcRenderer.invoke('writeTheme', theme, css))
+}
+
 let applyThemeRunning = false
 const waitList: string[] = []
 export async function applyTheme(theme: string): Promise<void> {