Do you have to have a social security card?

No, it's not mandatory, it's just the best thing to do.

The school-issued social security card currently only has the function of medical insurance, and can only be used to reduce or eliminate the cost of medication when visiting the doctor, while other costs (treatment costs, injection costs) have to be paid out of pocket.

After the graduation of students, the original student health insurance card function is automatically canceled, to buy another urban workers' health insurance or residents' health insurance, in order to enjoy the health insurance treatment, if the work unit and the school is in the same city, you can take my ID card and social security card to the local social security center to get the password to activate the use of the Internet, if it is not in the same city will have to be re-transferred, because the social security is not yet the national network, the new social security card has a silver-link logo, and the new social security card will have a silver-link logo. The new social security card has the UnionPay logo, can be used as a bank card, if you need to use, but also to bring my ID card and social security card to the card labeled bank activation.

Extended reading: insurance how to buy, which is good, hand to teach you to avoid these insurance "pit"