支付宝的账户名称也就是邮箱/手机号无法更改，但是可以更改昵称，具体步骤如下：
1、手机登录支付宝， 点击【我的】—右上角设置图标
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2、进入我的信息，点击【账户详情】
/iknow-pic.cdn.bcebos.com/a6efce1b9d16fdfa3c980331b88f8c5495ee7b7d"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/a6efce1b9d16fdfa3c980331b88f8c5495ee7b7d?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/a6efce1b9d16fdfa3c980331b88f8c5495ee7b7d"/>
3、点击【昵称】
/iknow-pic.cdn.bcebos.com/9d82d158ccbf6c812eede937b03eb13532fa4013"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/9d82d158ccbf6c812eede937b03eb13532fa4013?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/9d82d158ccbf6c812eede937b03eb13532fa4013"/>
4、填写昵称后点击【保存】
/iknow-pic.cdn.bcebos.com/fc1f4134970a304e9c3a6425ddc8a786c8175cd1"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/fc1f4134970a304e9c3a6425ddc8a786c8175cd1?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/fc1f4134970a304e9c3a6425ddc8a786c8175cd1"/>
参考资料：/cshall.alipay.com/lab/help_detail.htm?help_id=559781"target="_blank"title="支付宝服务大厅-在手机支付宝，修改已设置昵称流程">支付宝服务大厅-在手机支付宝，修改已设置昵称流程
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