How to change the mobile phone number of social security card?

1. Bring your social security card and ID card and change the bound mobile phone number at the Human Resources and Social Security Bureau of the insured area. Some provinces and cities can change their mobile phone numbers online. After entering official website, the Human Resources and Social Security Bureau of the insured place, click Login to enter your account, then click Password Protection to modify, and finally click the new confidential mobile phone, and follow the prompts on the page.

2. As the situation varies from place to place, cardholders can go directly to the Human Resources and Social Security Bureau to change their ties.