手机QQ的聊天记录保存在文件管理——本地存储——Tencent——mobileQQ中，具体的操作步骤如下：
1、打开手机上的实用工具，在工具中找到文件管理并且点击“文件管理”。
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2、进入到文件管理器以后，在本地中找到内部存储并且点击。
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3、进入到本地存储以后，找到Tencent的文件夹并且点击“Tencent”。
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4、进入到Tencent文件中以后，找到mobileQQ的文件夹并且点击它。
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5、进入到mobileQQ文件夹里面后，找到你QQ号码的文件夹，里面有QQ的聊天记录。
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