diff --git a/package.json b/package.json
index e589627..7d1e059 100644
--- a/package.json
+++ b/package.json
@@ -131,17 +131,12 @@
           ],
           "description": "Trace level of tsserver"
         },
-        "tserver.pluginNames": {
-          "type": "array",
+        "tsserver.pluginRoot": {
+          "type": "string",
           "default": [],
           "items": {
             "type": "string"
           },
-          "description": "Module names of tsserver plugins"
-        },
-        "tsserver.pluginRoot": {
-          "type": "string",
-          "default": "",
           "description": "Folder contains tsserver plugins"
         },
         "tsserver.debugPort": {
diff --git a/src/index.ts b/src/index.ts
index dcacd41..9b4e937 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,21 +1,25 @@
 import { commands, ExtensionContext, services, workspace } from 'coc.nvim'
 import TsserverService from './server'
-import { Command, OpenTsServerLogCommand, AutoFixCommand, ReloadProjectsCommand, TypeScriptGoToProjectConfigCommand } from './server/commands'
+import { AutoFixCommand, Command, ConfigurePluginCommand, OpenTsServerLogCommand, ReloadProjectsCommand, TypeScriptGoToProjectConfigCommand } from './server/commands'
 import OrganizeImportsCommand from './server/organizeImports'
+import { PluginManager } from './utils/plugins'
 
-export async function activate(context: ExtensionContext): Promise<void> {
+interface API {
+  configurePlugin(pluginId: string, configuration: {}): void
+}
+
+export async function activate(context: ExtensionContext): Promise<API> {
   let { subscriptions } = context
   const config = workspace.getConfiguration().get<any>('tsserver', {})
   if (!config.enable) return
-  const service = new TsserverService()
+  const pluginManager = new PluginManager()
+  const service = new TsserverService(pluginManager)
 
   subscriptions.push(
     (services as any).regist(service)
   )
 
-  if (!service.clientHost) {
-    await service.start()
-  }
+  await service.start()
 
   function registCommand(cmd: Command): void {
     let { id, execute } = cmd
@@ -27,6 +31,7 @@ export async function activate(context: ExtensionContext): Promise<void> {
   registCommand(new OpenTsServerLogCommand(service.clientHost))
   registCommand(new TypeScriptGoToProjectConfigCommand(service.clientHost))
   registCommand(new OrganizeImportsCommand(service.clientHost))
+  registCommand(new ConfigurePluginCommand(pluginManager))
   registCommand(commands.register({
     id: 'tsserver.restart',
     execute: (): void => {
@@ -38,4 +43,9 @@ export async function activate(context: ExtensionContext): Promise<void> {
       })
     }
   }))
+  return {
+    configurePlugin: (pluginId: string, configuration: {}): void => {
+      pluginManager.setConfiguration(pluginId, configuration)
+    }
+  }
 }
diff --git a/src/server/commands.ts b/src/server/commands.ts
index 2313759..826b3dc 100644
--- a/src/server/commands.ts
+++ b/src/server/commands.ts
@@ -7,6 +7,7 @@ import * as typeConverters from './utils/typeConverters'
 import { TextEdit, Range } from 'vscode-languageserver-types'
 import { installModules } from './utils/modules'
 import { nodeModules } from './utils/helper'
+import { PluginManager } from '../utils/plugins'
 
 export interface Command {
   readonly id: string | string[]
@@ -164,3 +165,15 @@ export class AutoFixCommand implements Command {
     if (command) await commands.executeCommand(command)
   }
 }
+
+export class ConfigurePluginCommand implements Command {
+  public readonly id = '_typescript.configurePlugin'
+
+  public constructor(
+    private readonly pluginManager: PluginManager,
+  ) { }
+
+  public execute(pluginId: string, configuration: any) {
+    this.pluginManager.setConfiguration(pluginId, configuration)
+  }
+}
diff --git a/src/server/features/completionItemProvider.ts b/src/server/features/completionItemProvider.ts
index f9f7085..c0684b7 100644
--- a/src/server/features/completionItemProvider.ts
+++ b/src/server/features/completionItemProvider.ts
@@ -50,7 +50,7 @@ class ApplyCompletionCodeActionCommand implements CommandItem {
 
 export default class TypeScriptCompletionItemProvider implements CompletionItemProvider {
 
-  public static readonly triggerCharacters = ['.', '"', '\'', '/', '@', '<']
+  public static readonly triggerCharacters = ['.', '"', '\'', '/', '@']
   private completeOption: SuggestOptions
   private noSemicolons = false
 
diff --git a/src/server/index.ts b/src/server/index.ts
index fe24153..fb5a634 100644
--- a/src/server/index.ts
+++ b/src/server/index.ts
@@ -3,6 +3,7 @@ import { Disposable, DocumentSelector, Emitter, Event } from 'vscode-languageser
 import URI from 'vscode-uri'
 import TypeScriptServiceClientHost from './typescriptServiceClientHost'
 import { LanguageDescription, standardLanguageDescriptions } from './utils/languageDescription'
+import { PluginManager } from '../utils/plugins'
 
 function wait(ms: number): Promise<any> {
   return new Promise(resolve => {
@@ -25,7 +26,7 @@ export default class TsserverService implements IServiceProvider {
   private readonly disposables: Disposable[] = []
   private descriptions: LanguageDescription[] = []
 
-  constructor() {
+  constructor(private pluginManager: PluginManager) {
     const config = workspace.getConfiguration('tsserver')
     const enableJavascript = !!config.get<boolean>('enableJavascript')
     this.enable = config.get<boolean>('enable')
@@ -42,8 +43,9 @@ export default class TsserverService implements IServiceProvider {
   }
 
   public start(): Promise<void> {
+    if (this.clientHost) return
     this.state = ServiceStat.Starting
-    this.clientHost = new TypeScriptServiceClientHost(this.descriptions)
+    this.clientHost = new TypeScriptServiceClientHost(this.descriptions, this.pluginManager)
     this.disposables.push(this.clientHost)
     let client = this.clientHost.serviceClient
     return new Promise(resolve => {
diff --git a/src/server/typescriptService.ts b/src/server/typescriptService.ts
index ca78276..9253e73 100644
--- a/src/server/typescriptService.ts
+++ b/src/server/typescriptService.ts
@@ -50,6 +50,11 @@ export interface ITypeScriptServiceClient {
     args: Proto.ConfigureRequestArguments,
     token?: CancellationToken
   ): Promise<Proto.ConfigureResponse>
+  execute(
+    command: 'configurePlugin',
+    args: Proto.ConfigurePluginRequestArguments,
+    token?: CancellationToken
+  ): Promise<Proto.ConfigureResponse>
   execute(
     command: 'open',
     args: Proto.OpenRequestArgs,
diff --git a/src/server/typescriptServiceClient.ts b/src/server/typescriptServiceClient.ts
index 7d7faf0..f7afd79 100644
--- a/src/server/typescriptServiceClient.ts
+++ b/src/server/typescriptServiceClient.ts
@@ -23,6 +23,7 @@ import Tracer from './utils/tracer'
 import { inferredProjectConfig } from './utils/tsconfig'
 import { TypeScriptVersion, TypeScriptVersionProvider } from './utils/versionProvider'
 import VersionStatus from './utils/versionStatus'
+import { PluginManager } from '../utils/plugins'
 import { ICallback, Reader } from './utils/wireProtocol'
 
 interface CallbackItem {
@@ -166,7 +167,7 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
   private _apiVersion: API
   private readonly disposables: Disposable[] = []
 
-  constructor() {
+  constructor(private pluginManager: PluginManager) {
     this.pathSeparator = path.sep
     this.lastStart = Date.now()
     this.servicePromise = null
@@ -180,6 +181,13 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
     this._apiVersion = API.defaultVersion
     this.tracer = new Tracer(this.logger)
     this.versionStatus = new VersionStatus(this.normalizePath.bind(this))
+    pluginManager.onDidUpdateConfig(update => {
+      this.configurePlugin(update.pluginId, update.config)
+    }, null, this.disposables)
+
+    pluginManager.onDidChangePlugins(() => {
+      this.restartTsServer()
+    }, null, this.disposables)
   }
 
   private _onDiagnosticsReceived = new Emitter<TsDiagnostics>()
@@ -781,14 +789,20 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
     }
 
     if (this.apiVersion.gte(API.v230)) {
-      const plugins = this._configuration.tsServerPluginNames
+      const pluginNames = this.pluginManager.plugins.map(x => x.name)
       const pluginRoot = this._configuration.tsServerPluginRoot
-      if (plugins.length) {
-        args.push('--globalPlugins', plugins.join(','))
-        if (pluginRoot) {
-          args.push('--pluginProbeLocations', pluginRoot)
+      const pluginPaths = pluginRoot ? [pluginRoot] : []
+
+      if (pluginNames.length) {
+        args.push('--globalPlugins', pluginNames.join(','))
+        for (const plugin of this.pluginManager.plugins) {
+          pluginPaths.push(plugin.path)
         }
       }
+
+      if (pluginPaths.length) {
+        args.push('--pluginProbeLocations', pluginPaths.join(','))
+      }
     }
 
     if (this._configuration.typingsCacheLocation) {
@@ -808,7 +822,6 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
     if (this.apiVersion.gte(API.v291)) {
       args.push('--noGetErrOnBackgroundUpdate')
     }
-
     return args
   }
 
@@ -819,6 +832,15 @@ export default class TypeScriptServiceClient implements ITypeScriptServiceClient
     let res = findUp.sync(['tsconfig.json', 'jsconfig.json'], { cwd: path.dirname(u.fsPath) })
     return res ? path.dirname(res) : workspace.cwd
   }
+
+  public configurePlugin(pluginName: string, configuration: {}): any {
+    if (this.apiVersion.gte(API.v314)) {
+      if (!this.servicePromise) return
+      this.servicePromise.then(() => {
+        this.execute('configurePlugin', { pluginName, configuration }, false)
+      })
+    }
+  }
 }
 
 function getDiagnosticsKind(event: Proto.Event): DiagnosticKind {
diff --git a/src/server/typescriptServiceClientHost.ts b/src/server/typescriptServiceClientHost.ts
index 0b2a9af..958799f 100644
--- a/src/server/typescriptServiceClientHost.ts
+++ b/src/server/typescriptServiceClientHost.ts
@@ -12,6 +12,7 @@ import TypeScriptServiceClient from './typescriptServiceClient'
 import { LanguageDescription } from './utils/languageDescription'
 import * as typeConverters from './utils/typeConverters'
 import TypingsStatus, { AtaProgressReporter } from './utils/typingsStatus'
+import { PluginManager } from '../utils/plugins'
 
 // Style check diagnostics that can be reported as warnings
 const styleCheckDiagnostics = [
@@ -32,7 +33,7 @@ export default class TypeScriptServiceClientHost implements Disposable {
   private readonly disposables: Disposable[] = []
   private reportStyleCheckAsWarnings = true
 
-  constructor(descriptions: LanguageDescription[]) {
+  constructor(descriptions: LanguageDescription[], pluginManager: PluginManager) {
     let timer: NodeJS.Timer
     const handleProjectChange = () => {
       if (timer) clearTimeout(timer)
@@ -50,7 +51,7 @@ export default class TypeScriptServiceClientHost implements Disposable {
     packageFileWatcher.onDidCreate(this.reloadProjects, this, this.disposables)
     packageFileWatcher.onDidChange(handleProjectChange, this, this.disposables)
 
-    this.client = new TypeScriptServiceClient()
+    this.client = new TypeScriptServiceClient(pluginManager)
     this.disposables.push(this.client)
     this.client.onDiagnosticsReceived(({ kind, resource, diagnostics }) => {
       this.diagnosticsReceived(kind, resource, diagnostics)
diff --git a/src/server/utils/api.ts b/src/server/utils/api.ts
index 082c391..d9d4b93 100644
--- a/src/server/utils/api.ts
+++ b/src/server/utils/api.ts
@@ -28,6 +28,7 @@ export default class API {
   public static readonly v292 = API.fromSimpleString('2.9.2')
   public static readonly v300 = API.fromSimpleString('3.0.0')
   public static readonly v310 = API.fromSimpleString('3.1.0')
+  public static readonly v314 = API.fromSimpleString('3.1.4')
   public static readonly v320 = API.fromSimpleString('3.2.0')
 
   public static fromVersionString(versionString: string): API {
diff --git a/src/server/utils/configuration.ts b/src/server/utils/configuration.ts
index a26c643..8a0bc8c 100644
--- a/src/server/utils/configuration.ts
+++ b/src/server/utils/configuration.ts
@@ -64,10 +64,6 @@ export class TypeScriptServiceConfiguration {
     return this._configuration.get<string>('typingsCacheLocation', '')
   }
 
-  public get tsServerPluginNames(): string[] {
-    return this._configuration.get<string[]>('pluginNames', [])
-  }
-
   public get tsServerPluginRoot(): string | null {
     return this._configuration.get<string | null>('tsServerPluginRoot', null)
   }
diff --git a/src/utils/arrays.ts b/src/utils/arrays.ts
new file mode 100644
index 0000000..aacd3be
--- /dev/null
+++ b/src/utils/arrays.ts
@@ -0,0 +1,21 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+export function equals<T>(one: ReadonlyArray<T>, other: ReadonlyArray<T>, itemEquals: (a: T, b: T) => boolean = (a, b) => a === b): boolean {
+  if (one.length !== other.length) {
+    return false
+  }
+
+  for (let i = 0, len = one.length; i < len; i++) {
+    if (!itemEquals(one[i], other[i])) {
+      return false
+    }
+  }
+
+  return true
+}
+
+export function flatten<T>(arr: ReadonlyArray<T>[]): T[] {
+  return ([] as T[]).concat.apply([], arr)
+}
diff --git a/src/utils/plugins.ts b/src/utils/plugins.ts
new file mode 100644
index 0000000..b09696e
--- /dev/null
+++ b/src/utils/plugins.ts
@@ -0,0 +1,99 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { extensions, disposeAll } from 'coc.nvim'
+import * as arrays from './arrays'
+import { Disposable, Emitter } from 'vscode-languageserver-protocol'
+
+export interface TypeScriptServerPlugin {
+  readonly path: string
+  readonly name: string
+  readonly enableForWorkspaceTypeScriptVersions: boolean
+  readonly languages: ReadonlyArray<string>
+}
+
+namespace TypeScriptServerPlugin {
+  export function equals(a: TypeScriptServerPlugin, b: TypeScriptServerPlugin): boolean {
+    return a.path === b.path
+      && a.name === b.name
+      && a.enableForWorkspaceTypeScriptVersions === b.enableForWorkspaceTypeScriptVersions
+      && arrays.equals(a.languages, b.languages)
+  }
+}
+
+export class PluginManager implements Disposable {
+  private readonly _pluginConfigurations = new Map<string, {}>()
+  private _disposables = []
+
+  private _plugins: Map<string, ReadonlyArray<TypeScriptServerPlugin>> | undefined
+
+  constructor() {
+    let loadPlugins = () => {
+      if (!this._plugins) {
+        return
+      }
+      const newPlugins = this.readPlugins()
+      if (!arrays.equals(arrays.flatten(Array.from(this._plugins.values())), arrays.flatten(Array.from(newPlugins.values())), TypeScriptServerPlugin.equals)) {
+        this._plugins = newPlugins
+        this._onDidUpdatePlugins.fire(this)
+      }
+    }
+    extensions.onDidActiveExtension(loadPlugins, undefined, this._disposables)
+    extensions.onDidUnloadExtension(loadPlugins, undefined, this._disposables)
+  }
+
+  public dispose(): void {
+    disposeAll(this._disposables)
+  }
+
+  public get plugins(): ReadonlyArray<TypeScriptServerPlugin> {
+    if (!this._plugins) {
+      this._plugins = this.readPlugins()
+    }
+    return arrays.flatten(Array.from(this._plugins.values()))
+  }
+
+  public _register<T extends Disposable>(value: T): T {
+    this._disposables.push(value)
+    return value
+  }
+
+  private readonly _onDidUpdatePlugins = this._register(new Emitter<this>())
+  public readonly onDidChangePlugins = this._onDidUpdatePlugins.event
+
+  private readonly _onDidUpdateConfig = this._register(new Emitter<{ pluginId: string, config: {} }>())
+  public readonly onDidUpdateConfig = this._onDidUpdateConfig.event
+
+  public setConfiguration(pluginId: string, config: {}) {
+    this._pluginConfigurations.set(pluginId, config)
+    this._onDidUpdateConfig.fire({ pluginId, config })
+  }
+
+  public configurations(): IterableIterator<[string, {}]> {
+    return this._pluginConfigurations.entries()
+  }
+
+  private readPlugins() {
+    const pluginMap = new Map<string, ReadonlyArray<TypeScriptServerPlugin>>()
+    for (const extension of extensions.all) {
+      const pack = extension.packageJSON
+      if (pack.contributes && Array.isArray(pack.contributes.typescriptServerPlugins)) {
+        const plugins: TypeScriptServerPlugin[] = []
+        for (const plugin of pack.contributes.typescriptServerPlugins) {
+          plugins.push({
+            name: plugin.name,
+            enableForWorkspaceTypeScriptVersions: !!plugin.enableForWorkspaceTypeScriptVersions,
+            path: extension.extensionPath,
+            languages: Array.isArray(plugin.languages) ? plugin.languages : [],
+          })
+        }
+        if (plugins.length) {
+          pluginMap.set(extension.id, plugins)
+        }
+      }
+    }
+    return pluginMap
+  }
+}