diff --git a/README.md b/README.md
index 1f7bd4b4..c81070a0 100644
--- a/README.md
+++ b/README.md
@@ -191,16 +191,18 @@ async function creatFont() {
 
 > svgtofont(options)
 
-
-
-    "log": false,
-
 ### log
 
 > Type: `Boolean`  
 
 A value of `false` disables logging
 
+### logger
+
+> Type: `(msg) => void`  
+
+log callback function
+
 ### dist
 
 > Type: `String`  
diff --git a/src/index.ts b/src/index.ts
index c031424b..2b705804 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -13,6 +13,8 @@ import { createSVG, createTTF, createEOT, createWOFF, createWOFF2, createSvgSymb
 export type SvgToFontOptions = {
   /** A value of `false` disables logging */
   log?: boolean;
+  /** log callback function  */
+  logger?: (message: string) => void;
   /**
    * The output directory.
    * @default fonts
@@ -180,6 +182,8 @@ export default async (options: SvgToFontOptions = {}) => {
   }
 
   log.disabled = options.log || false;
+  console.log('options.logger::', options.logger)
+  if (options.logger && typeof options.logger === 'function') log.logger = options.logger;
   options.dist = options.dist || path.join(process.cwd(), 'fonts');
   options.src = options.src || path.join(process.cwd(), 'svg');
   options.startUnicode = options.startUnicode || 0xea01;
diff --git a/src/log.ts b/src/log.ts
index e045fe51..ddc6cfcb 100644
--- a/src/log.ts
+++ b/src/log.ts
@@ -10,13 +10,16 @@ export class Log {
     this._disabled = val;
   }
   log = (message?: any, ...optionalParams: any[]) => {
+    if (this.logger) this.logger(message);
     if (this.disabled) return () => {}
     return console.log(message, ...optionalParams)
   }
   error = (message?: any, ...optionalParams: any[]) => {
+    if (this.logger) this.logger(message);
     if (this.disabled) return () => {}
     return console.error(message, ...optionalParams)
   }
+  logger = (message?: string) => {}
 }
 
 export const log = new Log();
\ No newline at end of file