The main types of social security models in various countries are

Legal analysis: welfare social security model: with the principle of universality and universal security as the core, all residents and citizens can enjoy various welfare security policies formulated by the state regardless of income and employment. Because all people have the right to be protected, the social security funds under this model come from state taxes.

Compulsory saving mode: with compulsory saving as the core, the government forces employers and employees to save social security fees for employees to meet the payment needs of employees' social security projects.

Social insurance model: also known as Bismarck social security model, it is the earliest social security model. This model takes social insurance as the core, and the social security expenses are shared by employees, employers and the state, mainly by employees and employers. The payment of social security is related to employees' income and social insurance contributions.

Legal basis: People's Republic of China (PRC) Social Insurance Law.

Article 1 This Law is formulated in accordance with the Constitution for the purpose of adjusting the social insurance relationship, safeguarding citizens' legitimate rights and interests in participating in social insurance and enjoying social insurance benefits, enabling citizens to share the fruits of development and promoting social harmony and stability.

Article 2 The state establishes social insurance systems such as basic old-age insurance, basic medical insurance, industrial injury insurance, unemployment insurance and maternity insurance, so as to guarantee citizens' right to receive material assistance from the state and society in accordance with the law in case of old age, illness, industrial injury, unemployment and maternity.