diff --git a/src/components/chat-view/ChatView.tsx b/src/components/chat-view/ChatView.tsx
index bca627a..75d50c7 100644
--- a/src/components/chat-view/ChatView.tsx
+++ b/src/components/chat-view/ChatView.tsx
@@ -30,6 +30,7 @@ import {
 } from '../../core/llm/exception'
 import { regexSearchFiles } from '../../core/ripgrep'
 import { useChatHistory } from '../../hooks/use-chat-history'
+import { useCustomModes } from '../../hooks/use-custom-mode'
 import { ApplyStatus, ToolArgs } from '../../types/apply'
 import { ChatMessage, ChatUserMessage } from '../../types/chat'
 import {
@@ -101,6 +102,7 @@ const Chat = forwardRef<ChatRef, ChatProps>((props, ref) => {
 	const { settings, setSettings } = useSettings()
 	const { getRAGEngine } = useRAG()
 	const diffStrategy = useDiffStrategy()
+	const { customModeList, customModePrompts } = useCustomModes()
 
 	const {
 		createOrUpdateConversation,
@@ -112,8 +114,8 @@ const Chat = forwardRef<ChatRef, ChatProps>((props, ref) => {
 	const { streamResponse, chatModel } = useLLM()
 
 	const promptGenerator = useMemo(() => {
-		return new PromptGenerator(getRAGEngine, app, settings, diffStrategy)
-	}, [getRAGEngine, app, settings, diffStrategy])
+		return new PromptGenerator(getRAGEngine, app, settings, diffStrategy, customModePrompts, customModeList)
+	}, [getRAGEngine, app, settings, diffStrategy, customModePrompts, customModeList])
 
 	const [inputMessage, setInputMessage] = useState<ChatUserMessage>(() => {
 		const newMessage = getNewInputMessage(app, settings.defaultMention)
diff --git a/src/components/chat-view/CustomModeView.tsx b/src/components/chat-view/CustomModeView.tsx
index cc45c0b..9e6f2ba 100644
--- a/src/components/chat-view/CustomModeView.tsx
+++ b/src/components/chat-view/CustomModeView.tsx
@@ -1,10 +1,14 @@
-import { Plus, Undo2, Settings, Circle, Trash2 } from 'lucide-react';
-import React, { useState, useEffect } from 'react';
+import { ChevronDown, ChevronRight, Plus, Trash2, Undo2 } from 'lucide-react';
+import React, { useEffect, useState } from 'react';
 
+import { useApp } from '../../contexts/AppContext';
+import { CustomMode, GroupEntry, ToolGroup } from '../../database/json/custom-mode/types';
 import { useCustomModes } from '../../hooks/use-custom-mode';
-import { CustomMode, ToolGroup, toolGroups, GroupEntry } from '../../database/json/custom-mode/types';
 import { modes as buildinModes } from '../../utils/modes';
+import { openOrCreateMarkdownFile } from '../../utils/obsidian';
 const CustomModeView = () => {
+	const app = useApp()
+
 	const {
 		createCustomMode,
 		deleteCustomMode,
@@ -15,7 +19,7 @@ const CustomModeView = () => {
 	// 当前选择的模式
 	const [selectedMode, setSelectedMode] = useState<string>('ask')
 	const [isBuiltinMode, setIsBuiltinMode] = useState<boolean>(true)
-
+	const [isAdvancedCollapsed, setIsAdvancedCollapsed] = useState(true);
 
 	const isNewMode = React.useMemo(() => selectedMode === "add_new_mode", [selectedMode])
 
@@ -46,7 +50,6 @@ const CustomModeView = () => {
 	// 自定义指令
 	const [customInstructions, setCustomInstructions] = useState<string>('')
 
-
 	// 当模式变更时更新表单数据
 	useEffect(() => {
 		//  new mode
@@ -63,7 +66,7 @@ const CustomModeView = () => {
 		const builtinMode = buildinModes.find(m => m.slug === selectedMode);
 		if (builtinMode) {
 			setIsBuiltinMode(true);
-			setModeName(builtinMode.name);
+			setModeName(builtinMode.slug);
 			setRoleDefinition(builtinMode.roleDefinition);
 			setCustomInstructions(builtinMode.customInstructions || '');
 			setSelectedTools(builtinMode.groups as GroupEntry[]);
@@ -219,9 +222,11 @@ const CustomModeView = () => {
 			<div className="infio-custom-modes-section">
 				<div className="infio-section-header">
 					<h3>角色定义</h3>
-					<button className="infio-section-btn">
-						<Undo2 size={16} />
-					</button>
+					{isBuiltinMode && (
+						<button className="infio-section-btn">
+							<Undo2 size={16} />
+						</button>
+					)}
 				</div>
 				<p className="infio-section-subtitle">设定专业领域和应答风格</p>
 				<textarea
@@ -274,7 +279,7 @@ const CustomModeView = () => {
 								checked={selectedTools.includes('research')}
 								onChange={() => handleToolChange('research')}
 							/>
-							浏览器
+							网络搜索
 						</label>
 					</div>
 				</div>
@@ -298,10 +303,29 @@ const CustomModeView = () => {
 					placeholder="输入模式自定义指令..."
 				/>
 				<p className="infio-section-footer">
-					支持从<a href="#" className="infio-link">_infio_prompts/code-rules/</a>目录读取配置
+					支持从<a href="#" className="infio-link" onClick={() => openOrCreateMarkdownFile(app, `_infio_prompts/${modeName}/rules.md`, 0)}>_infio_prompts/{modeName}/rules</a> 文件中读取配置
 				</p>
 			</div>
 
+			{/* 高级, 覆盖系统提示词 */}
+			<div className="infio-custom-modes-section">
+				<div
+					className="infio-section-header infio-section-header-collapsible"
+					onClick={() => setIsAdvancedCollapsed(!isAdvancedCollapsed)}
+				>
+					<div className="infio-section-header-title-container">
+						{isAdvancedCollapsed ? <ChevronRight size={16} /> : <ChevronDown size={16} />}
+						<h6>覆盖系统提示词</h6>
+					</div>
+				</div>
+				{!isAdvancedCollapsed && (
+					<p className="infio-section-subtitle">
+						您可以通过在工作区创建文件
+						<a href="#" className="infio-link" onClick={() => openOrCreateMarkdownFile(app, `_infio_prompts/${modeName}/system-prompt.md`, 0)}>_infio_prompts/{modeName}/system-prompt</a>
+						，完全替换此模式的系统提示（角色定义和自定义指令除外）。这是一个非常高级的功能，会覆盖工具使用等全部内置提示, 请谨慎操作
+					</p>
+				)}
+			</div>
 			<div className="infio-custom-modes-actions">
 				<button className="infio-preview-btn">
 					预览
@@ -546,6 +570,17 @@ const CustomModeView = () => {
 					justify-content: center;
 					width: fit-content;
 				}
+
+				.infio-section-header-collapsible {
+					cursor: pointer;
+					user-select: none;
+				}
+
+				.infio-section-header-title-container {
+					display: flex;
+					align-items: center;
+					gap: 4px;
+				}
 				`}
 			</style>
 		</div>
diff --git a/src/components/chat-view/chat-input/ModeSelect.tsx b/src/components/chat-view/chat-input/ModeSelect.tsx
index 3fff4a1..d56c9cb 100644
--- a/src/components/chat-view/chat-input/ModeSelect.tsx
+++ b/src/components/chat-view/chat-input/ModeSelect.tsx
@@ -1,8 +1,9 @@
 import * as DropdownMenu from '@radix-ui/react-dropdown-menu'
 import { ChevronDown, ChevronUp } from 'lucide-react'
-import { useEffect, useState } from 'react'
+import React, { useEffect, useState, useMemo } from 'react'
 
 import { useSettings } from '../../../contexts/SettingsContext'
+import { useCustomModes } from '../../../hooks/use-custom-mode'
 import { modes } from '../../../utils/modes'
 
 export function ModeSelect() {
@@ -10,11 +11,14 @@ export function ModeSelect() {
 	const [isOpen, setIsOpen] = useState(false)
 	const [mode, setMode] = useState(settings.mode)
 
+	const { customModeList } = useCustomModes()
+
+	const allModes = useMemo(() => [...modes, ...customModeList], [customModeList])
+
 	useEffect(() => {
 		setMode(settings.mode)
 	}, [settings.mode])
 
-
 	return (
 		<DropdownMenu.Root open={isOpen} onOpenChange={setIsOpen}>
 			<DropdownMenu.Trigger className="infio-chat-input-model-select">
@@ -22,7 +26,7 @@ export function ModeSelect() {
 					{isOpen ? <ChevronUp size={12} /> : <ChevronDown size={12} />}
 				</div>
 				<div className="infio-chat-input-model-select__model-name">
-					{modes.find((m) => m.slug === mode)?.name}
+					{allModes.find((m) => m.slug === mode)?.name}
 				</div>
 			</DropdownMenu.Trigger>
 
@@ -30,7 +34,7 @@ export function ModeSelect() {
 				<DropdownMenu.Content
 					className="infio-popover">
 					<ul>
-						{modes.map((mode) => (
+						{allModes.map((mode) => (
 							<DropdownMenu.Item
 								key={mode.slug}
 								onSelect={() => {
diff --git a/src/core/prompts/system.ts b/src/core/prompts/system.ts
index b59e879..2f7dafd 100644
--- a/src/core/prompts/system.ts
+++ b/src/core/prompts/system.ts
@@ -152,10 +152,10 @@ ${await addCustomInstructions(this.app, promptComponent?.customInstructions || m
 		filesSearchMethod: string = 'regex',
 		preferredLanguage?: string,
 		diffStrategy?: DiffStrategy,
-		mcpHub?: McpHub,
-		browserViewportSize?: string,
 		customModePrompts?: CustomModePrompts,
 		customModes?: ModeConfig[],
+		mcpHub?: McpHub,
+		browserViewportSize?: string,
 		globalCustomInstructions?: string,
 		diffEnabled?: boolean,
 		experiments?: Record<string, boolean>,
diff --git a/src/hooks/use-custom-mode.ts b/src/hooks/use-custom-mode.ts
index 535ed17..9219120 100644
--- a/src/hooks/use-custom-mode.ts
+++ b/src/hooks/use-custom-mode.ts
@@ -3,7 +3,7 @@ import { useCallback, useEffect, useMemo, useState } from 'react'
 import { useApp } from '../contexts/AppContext'
 import { CustomModeManager } from '../database/json/custom-mode/CustomModeManager'
 import { CustomMode, GroupEntry } from '../database/json/custom-mode/types'
-
+import { CustomModePrompts } from '../utils/modes'
 
 type UseCustomModes = {
 	createCustomMode: (
@@ -22,6 +22,7 @@ type UseCustomModes = {
 	) => Promise<void>
 	FindCustomModeByName: (name: string) => Promise<CustomMode | undefined>
 	customModeList: CustomMode[]
+	customModePrompts: CustomModePrompts
 }
 
 export function useCustomModes(): UseCustomModes {
@@ -37,6 +38,16 @@ export function useCustomModes(): UseCustomModes {
 		})
 	}, [customModeManager])
 
+	const customModePrompts = useMemo(() => {
+		return customModeList.reduce((acc, customMode) => {
+			acc[customMode.slug] = {
+				roleDefinition: customMode.roleDefinition,
+				customInstructions: customMode.customInstructions,
+			}
+			return acc
+		}, {} as CustomModePrompts)
+	}, [customModeList])
+
 	useEffect(() => {
 		void fetchCustomModeList()
 	}, [fetchCustomModeList])
@@ -91,5 +102,6 @@ export function useCustomModes(): UseCustomModes {
 		updateCustomMode,
 		FindCustomModeByName,
 		customModeList,
+		customModePrompts,
 	}
 }
diff --git a/src/utils/obsidian.ts b/src/utils/obsidian.ts
index 6efba0b..3c3069f 100644
--- a/src/utils/obsidian.ts
+++ b/src/utils/obsidian.ts
@@ -1,5 +1,7 @@
 import { App, Editor, MarkdownView, TFile, TFolder, Vault, WorkspaceLeaf } from 'obsidian'
 
+import * as path from 'path'
+
 import { MentionableBlockData } from '../types/mentionable'
 
 export async function readTFileContent(
@@ -61,7 +63,7 @@ export function getOpenFiles(app: App): TFile[] {
 		const leaves = app.workspace.getLeavesOfType('markdown')
 
 		return leaves
-			.filter((v): v is WorkspaceLeaf & { view: MarkdownView & { file: TFile } } => 
+			.filter((v): v is WorkspaceLeaf & { view: MarkdownView & { file: TFile } } =>
 				v.view instanceof MarkdownView && !!v.view.file
 			)
 			.map((v) => v.view.file)
@@ -125,3 +127,20 @@ export function openMarkdownFile(
 		})
 	}
 }
+
+export async function openOrCreateMarkdownFile(
+	app: App,
+	filePath: string,
+	startLine?: number,
+) {
+	const file_exists = await app.vault.adapter.exists(filePath)
+	if (!file_exists) {
+		const dir = path.dirname(filePath)
+		const dir_exists = await app.vault.adapter.exists(dir)
+		if (!dir_exists) {
+			await app.vault.adapter.mkdir(dir)
+		}
+		await app.vault.adapter.write(filePath, '')
+	}
+	openMarkdownFile(app, filePath, startLine)
+}
diff --git a/src/utils/prompt-generator.ts b/src/utils/prompt-generator.ts
index 7e5e33c..134a91d 100644
--- a/src/utils/prompt-generator.ts
+++ b/src/utils/prompt-generator.ts
@@ -17,7 +17,7 @@ import {
 	MentionableVault
 } from '../types/mentionable'
 import { InfioSettings } from '../types/settings'
-import { Mode, getFullModeDetails } from "../utils/modes"
+import { CustomModePrompts, Mode, ModeConfig, getFullModeDetails } from "../utils/modes"
 
 import {
 	readTFileContent
@@ -116,6 +116,8 @@ export class PromptGenerator {
 	private settings: InfioSettings
 	private diffStrategy: DiffStrategy
 	private systemPrompt: SystemPrompt
+	private customModePrompts: CustomModePrompts | null = null
+	private customModeList: ModeConfig[] | null = null
 	private static readonly EMPTY_ASSISTANT_MESSAGE: RequestMessage = {
 		role: 'assistant',
 		content: '',
@@ -126,12 +128,16 @@ export class PromptGenerator {
 		app: App,
 		settings: InfioSettings,
 		diffStrategy?: DiffStrategy,
+		customModePrompts?: CustomModePrompts,
+		customModeList?: ModeConfig[],
 	) {
 		this.getRagEngine = getRagEngine
 		this.app = app
 		this.settings = settings
 		this.diffStrategy = diffStrategy
 		this.systemPrompt = new SystemPrompt(this.app)
+		this.customModePrompts = customModePrompts ?? null
+		this.customModeList = customModeList ?? null
 	}
 
 	public async generateRequestMessages({
@@ -473,7 +479,9 @@ export class PromptGenerator {
 			mode,
 			filesSearchMethod,
 			preferredLanguage,
-			this.diffStrategy
+			this.diffStrategy,
+			this.customModePrompts,
+			this.customModeList,
 		)
 
 		return {