Legal analysis: the proportion of social security fund and pension is generally: social security is linked to salary, and the proportion of unit and individual is generally: pension insurance (unit 20%, individual 8%), medical insurance (unit 10%, individual 2%), unemployment insurance (unit 1%, individual 0.2%) and maternity insurance (0. Because the per capita income varies from place to place, the proportion of provinces and cities is also different. Freelancers and flexible employees can participate in the basic old-age insurance for urban and rural residents, basic medical insurance for urban and rural residents, basic old-age insurance for enterprise employees and basic medical insurance for enterprise employees.

Legal basis: Article 70 of the Labor Law of People's Republic of China (PRC). The state develops social insurance, establishes a social insurance system and a social insurance fund, so that workers can get help and compensation in cases of old age, illness, work injury, unemployment and maternity.