The steps to pay for medical insurance on your mobile phone are as follows:

1. Open Alipay on your mobile phone and select more applications.

2. Select "City Services".

3. Select the location in the upper left corner. Such as "Xuchang". There is a service hall in the drop-down menu, select the "Social Security" option.

4. Select “Social Security Collection for Natural Persons”.

5. Select “Medical Treatment for Urban and Rural Residents”.

6. Check "Whether to pay on behalf of others", enter the ID number and name of the person who needs to pay, and click "Query".

7. The "Pay Social Security Fees" column will appear below. Just click on the item that needs to be paid to enter the payment.