Do full-time graduate students have to cut off social security?

Legal analysis: I am admitted to full-time graduate students after work. I can pay social security at my own expense if I have the conditions during my study, and I don't have to cut off my previous social security. (If the company pays social security, it needs to be terminated after leaving the company. In addition, social security is paid more. The more you pay, the more you get when you get old.

Legal basis: Social Insurance Law of People's Republic of China (PRC) Article 1 This Law is formulated in accordance with the Constitution in order to standardize the social insurance relationship, safeguard the legitimate rights and interests of citizens to participate in social insurance and enjoy social insurance benefits, enable citizens to enjoy the fruits of development and promote social harmony and stability.