Social security budget revenue refers to social security funds raised by the state through various channels to participate in the distribution of national income, including general social security budget revenue, fund budget revenue and other income arranged by the public budget. General budget revenue refers to the annual social security funds arranged by the general budget through national income redistribution. Specific sources include: carry-over from last year, budget arrangement of the current year, new financial resources, special subsidies from higher authorities, carry-over funds, adjustment of general budget items, etc.

Fund budget income is divided into two parts: budgetary fund income and extra-budgetary fund income. In-budget fund income refers to the part of the special fund directly collected from the financial budget to ensure the development of social security, which is managed by the social security department according to the fund, including the re-employment assistance fund, the minimum living security fund for urban residents, and the medical security fund for employees. Extra-budgetary fund income refers to the special funds paid by enterprises and individual employees according to a certain proportion of total wages and wages in accordance with the relevant national policies and regulations, which are raised to ensure the basic livelihood of enterprise employees after retirement, resignation and unemployment, including enterprise employees' pension insurance fund income, government institutions' pension insurance fund income, rural pension insurance fund income, enterprise employees' unemployment insurance fund income, enterprise employees' industrial injury insurance fund income, enterprise employees' maternity insurance fund income, employment security fund income for the disabled, social welfare fund income and housing accumulation fund. Other income refers to other income that is not included in the above income.