淘宝邮编是不支持在手机上修改的，可以前往淘宝官网进行修改。
具体操作有如下几个步骤：
一、打开浏览器，输入“淘宝网”搜索，进入官网。
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二、点击“我的淘宝”进入管理界面。
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三、将鼠标一直“账户设置”区域。
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四、找到“账户设置”中的“收货地址”，点击进入。
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五、对需要进行修改的收货地址点击右边的“修改”。
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六、输入新的邮政编码后，点击“保存”就修改完成了。
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