2. Click "?" It's on the cell phone number in the personal center. Check the prompt pop-up window to know that the binding mobile phone numbers of Beijing Health Bao and Alipay are always the same. You can change the mobile phone number by re-verifying the login after changing the Alipay mobile phone number.
3. Click "My" on the Alipay homepage.
4. Next, you need to click "Settings" in the personal center, as shown in the figure.
5. Click "Security Settings", and then click "Mobile Number" in the security settings interface.
6. Click "Change Mobile Number" in the mobile phone number interface, and then follow the prompts to change the mobile phone number.