diff --git a/index.d.ts b/index.d.ts
index 7ea6d76ba1..25c4f51ff7 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -6,7 +6,7 @@ import { EventEmitter } from 'events'
 import { Readable } from 'stream';
 import { Socket } from 'net';
 import { IncomingMessage, ServerResponse } from 'http';
-import { EggLogger, EggLoggers, LoggerLevel as EggLoggerLevel, EggContextLogger } from 'egg-logger';
+import { EggLogger, EggLoggers, LoggerLevel as EggLoggerLevel, EggLoggersOptions, EggLoggerOptions, EggContextLogger } from 'egg-logger';
 import { HttpClient, RequestOptions2 as RequestOptions } from 'urllib';
 import {
   EggCoreBase,
@@ -210,6 +210,16 @@ declare module 'egg' {
   type IgnoreItem = string | RegExp | ((ctx: Context) => boolean);
   type IgnoreOrMatch = IgnoreItem | IgnoreItem[];
 
+  /** logger config of egg */
+  export interface EggLoggerConfig extends RemoveSpecProp<EggLoggersOptions, 'type'> {
+    /** custom config of coreLogger */
+    coreLogger?: Partial<EggLoggerOptions>;
+    /** allow debug log at prod, defaults to true */
+    allowDebugAtProd?: boolean;
+    /** disable logger console after app ready. defaults to `false` on local and unittest env, others is `true`. */
+    disableConsoleAfterReady?: boolean;
+  }
+
   /** Custom Loader Configuration */
   export interface CustomLoaderConfig extends RemoveSpecProp<FileLoaderOption, 'inject' | 'target'> {
     /**
@@ -312,21 +322,11 @@ declare module 'egg' {
      * @property {Object} coreLogger - custom config of coreLogger
      * @property {Boolean} allowDebugAtProd - allow debug log at prod, defaults to true
      */
-    logger: {
-      dir: string;
-      encoding: string;
-      env: EggEnvType;
-      level: LoggerLevel;
-      consoleLevel: LoggerLevel;
-      disableConsoleAfterReady: boolean;
-      outputJSON: boolean;
-      buffer: boolean;
-      appLogName: string;
-      coreLogName: string;
-      agentLogName: string;
-      errorLogName: string;
-      coreLogger: any;
-      allowDebugAtProd: boolean;
+    logger: EggLoggerConfig;
+
+    /** custom logger of egg */
+    customLogger: {
+      [key: string]: EggLoggerOptions;
     };
 
     /** Configuration of httpclient in egg. */
diff --git a/test/fixtures/apps/app-ts-type-check/normal.ts b/test/fixtures/apps/app-ts-type-check/normal.ts
index f2e999f954..ba4b8ccbf7 100644
--- a/test/fixtures/apps/app-ts-type-check/normal.ts
+++ b/test/fixtures/apps/app-ts-type-check/normal.ts
@@ -138,6 +138,36 @@ config.httpclient = {
   proxy: 'http://127.0.0.1:8888'
 }
 config.httpclient = httpclientOption;
+config.logger = {
+  dir: 'logs',
+  encoding: 'utf8',
+  env: 'prod',
+  level: 'INFO',
+  consoleLevel: 'INFO',
+  disableConsoleAfterReady: true,
+  outputJSON: false,
+  buffer: true,
+  appLogName: `app-web.log`,
+  coreLogName: 'egg-web.log',
+  agentLogName: 'egg-agent.log',
+  errorLogName: 'common-error.log',
+  allowDebugAtProd: false,
+  coreLogger: {},
+};
+config.customLogger = {
+  myLogger: {
+    file: './test.log',
+    jsonFile: './test.json',
+    formatter: (meta: any) => (meta.date + ' ' + meta.level + ' ' + meta.pid + ' ' + meta.message),
+    contextFormatter: meta => JSON.stringify(meta),
+    buffer: true,
+    eol: '\r\n',
+  },
+
+  otherLogger: {
+    file: './other.log',
+  }
+}
 
 // partial config
 const config2 = {} as PowerPartial<EggAppConfig>;
@@ -155,6 +185,16 @@ config2.customLoader = {
 config2.security = {
   csrf: false,
 }
+config2.logger = {
+  dir: 'logs',
+  encoding: 'utf8',
+  env: 'prod',
+  level: 'INFO',
+  coreLogger: {
+    file: './test.log',
+    level: 'ALL',
+  }
+}
 
 // singleton
 const redis = {} as Singleton<{ test(): void; }>;