I haven't paid social security for a long time. How to check now? I don't know the computer number. At that time, the province issued a red social security book. Excuse me, how to inquire

Just have an ID card. Go directly to the local social security agency to check the name and ID number of the voucher. Your little red book may be a handbook of endowment insurance. If you are hired, it will be kept by your company. If you are not hired, you will usually be given it, and then you will keep it for the new company. If you really lose it, I suggest you reissue another one.