diff --git a/lib/login/captcha/block_puzzle_captcha.dart b/lib/login/captcha/block_puzzle_captcha.dart
index 1c450f0d..317bb7ca 100644
--- a/lib/login/captcha/block_puzzle_captcha.dart
+++ b/lib/login/captcha/block_puzzle_captcha.dart
@@ -1,4 +1,5 @@
 import 'dart:convert';
+import 'dart:io';
 import 'dart:math';
 
 import 'package:dio/dio.dart';
@@ -294,7 +295,7 @@ class _BlockPuzzleCaptchaPageState extends State<BlockPuzzleCaptchaPage>
         child: Container(
           key: _containerKey,
           width: dialogWidth,
-          height: 320.h,
+          height: (Platform.isAndroid)?320.h:310.h,
           color: Colors.white,
           child: Column(
             mainAxisAlignment: MainAxisAlignment.start,