Can parents buy social security if they have a business license in Shenzhen?

Of course. As long as you have a business license, you can buy social security, and self-employed people can also pay social security, only pension, maternity and medical insurance. (As of July 8, 2023, only Chengdu and Shenzhen can pay maternity insurance). Social insurance refers to the system that the state establishes a social insurance fund through legislation to give necessary material help to workers who participate in labor relations when they lose their ability to work or are unemployed. Social insurance is not for profit.