diff --git a/src/settings/settingsTab.ts b/src/settings/settingsTab.ts
index 8babcc0..a323f2e 100644
--- a/src/settings/settingsTab.ts
+++ b/src/settings/settingsTab.ts
@@ -1,19 +1,19 @@
 import { App, DropdownComponent, PluginSettingTab, Setting, SliderComponent, TextComponent, ToggleComponent, getLanguage } from 'obsidian';
 import CFImageBedPlugin from '../../main';
 import { I18n, resolveLanguage } from '../utils/i18n';
-import { UploadChannel } from '../types';
+import { UploadChannel, UPLOAD_CHANNELS, Language, LANGUAGES } from '../types';
 import { extractHostname, formatDomainList, parseDomainList } from '../utils/domainUtils';
 
 export class CFImageBedSettingTab extends PluginSettingTab {
 	plugin: CFImageBedPlugin;
 	private i18n: I18n;
 
-	private isLanguage(value: string): value is 'zh' | 'en' {
-		return value === 'zh' || value === 'en';
+	private isLanguage(value: string): value is Language {
+		return (LANGUAGES as readonly string[]).includes(value);
 	}
 
 	private isUploadChannel(value: string): value is UploadChannel {
-		return value === 'telegram' || value === 'cfr2' || value === 's3' || value === 'discord' || value === 'huggingface';
+		return (UPLOAD_CHANNELS as readonly string[]).includes(value);
 	}
 
 	constructor(app: App, plugin: CFImageBedPlugin) {
@@ -151,6 +151,7 @@ export class CFImageBedSettingTab extends PluginSettingTab {
 				.addOption('s3', this.i18n.t('settings.basic.uploadChannel.options.s3'))
 				.addOption('discord', this.i18n.t('settings.basic.uploadChannel.options.discord'))
 				.addOption('huggingface', this.i18n.t('settings.basic.uploadChannel.options.huggingface'))
+				.addOption('webdav', this.i18n.t('settings.basic.uploadChannel.options.webdav'))
 				.setValue(this.plugin.settings.uploadChannel)
 				.onChange(async (value: string) => {
 					if (!this.isUploadChannel(value)) {
diff --git a/src/types/index.ts b/src/types/index.ts
index 328d59a..80be5e0 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -1,4 +1,8 @@
-export type UploadChannel = 'telegram' | 'cfr2' | 's3' | 'discord' | 'huggingface';
+export const UPLOAD_CHANNELS = ['telegram', 'cfr2', 's3', 'discord', 'huggingface', 'webdav'] as const;
+export type UploadChannel = (typeof UPLOAD_CHANNELS)[number];
+
+export const LANGUAGES = ['zh', 'en'] as const;
+export type Language = (typeof LANGUAGES)[number];
 
 export interface CFImageBedSettings {
 	// 基础配置
@@ -45,7 +49,7 @@ export interface CFImageBedSettings {
 	customReturnBaseUrl: string;
 
 	// 语言配置
-	language: 'zh' | 'en';
+	language: Language;
 }
 
 export const DEFAULT_SETTINGS: CFImageBedSettings = {
diff --git a/src/utils/i18n.ts b/src/utils/i18n.ts
index 6b69680..b222237 100644
--- a/src/utils/i18n.ts
+++ b/src/utils/i18n.ts
@@ -42,7 +42,8 @@ const translations: Record<Language, Translations> = {
 						cfr2: 'Cloudflare R2',
 						s3: 'S3 兼容存储',
 						discord: 'Discord',
-						huggingface: 'HuggingFace'
+					huggingface: 'HuggingFace',
+					webdav: 'WebDAV'
 					}
 				},
 				channelName: {
@@ -292,7 +293,8 @@ const translations: Record<Language, Translations> = {
 						cfr2: 'Cloudflare R2',
 						s3: 'S3 compatible storage',
 						discord: 'Discord',
-						huggingface: 'HuggingFace'
+					huggingface: 'HuggingFace',
+					webdav: 'WebDAV'
 					}
 				},
 				channelName: {