I want to ask if there is no file for paying social insurance.

You can go to the talent market to transfer files, but for other reasons, for example, you may not stay in the unit that gives you social security for a long time, and you will have to take the files away later. You don't need to bring your original file, just go to the social security place to handle the temporary file, so you have to pay for your original file storage. Your pension is only related to how much old-age insurance you pay in the future and how long you pay it, and has nothing to do with which social security you use. However, if the base of your unit's endowment insurance is not uniform, but calculated according to the length of service and education, it seems more cost-effective for you to use the original file, but if your original file is in the field, it can only be done temporarily. In addition, it is very simple to know the payment base of your social security, just ask the social security personnel of your unit clearly.

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