How to pay social security card online?

Can't open it directly. You need to activate the bank card function of social security card. You can apply for online banking after opening it. For details, please check at the bank counter:

With my bank card and ID card, I can sign a contract to open online banking at the local branch of the issuing bank;

Fill in the application form for opening online banking and submit the materials;

Enter personal information, bind the phone, and the staff will help open it.

Note: Online payment function will be opened at the same time as online banking. If the bank card has financial management function, you can also register online financial management function.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.