The social security fund refers to the social security fund managed by the National Social Security Fund Council (hereinafter referred to as the Council) and centrally managed by the central finance, and consists of funds transferred from state-owned shares and equity assets, funds allocated by the central finance, funds raised by other means approved by the State Council and their investment income. Social insurance fund is a fund raised by the state for holding social insurance undertakings, which is used to pay insurance benefits and allowances enjoyed by workers due to temporary or permanent loss of working ability or job opportunities. The social insurance fund shall determine the source of funds according to the types of insurance and gradually implement social pooling.

The sources of social insurance funds are as follows:

1, the insurance premium paid by the insured according to a certain proportion of his salary income (if the salary income cannot be determined according to the average salary of employees);

2. The insurance premium paid by the insured unit according to a certain proportion of the total wages of the employees of the unit;

3, the government's financial subsidies to social insurance funds;

4. Bank interest or return on investment from social insurance funds and social donations.

Legal basis: Article 2 of People's Republic of China (PRC) Social Insurance Law.

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 when they are old, sick, injured, unemployed and have children.

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The social insurance system adheres to the principles of wide coverage, basic protection, multi-level and sustainability, and the level of social insurance should be compatible with the level of economic and social development.

Article 4

Employers and individuals in People's Republic of China (PRC) pay social insurance premiums according to law, and have the right to inquire about payment records and personal rights records, and require social insurance agencies to provide social insurance consultation and other related services.

Individuals enjoy social insurance benefits according to law and have the right to supervise the payment of their own units.

Article 5

The people's governments at or above the county level will incorporate social insurance into the national economic and social development plan.

The state raises social insurance funds through multiple channels. People's governments at or above the county level shall give necessary financial support to social insurance.