Nurses' income source is salary.

1. The main source of income for working in a hospital must come from salary.

2. Income sources refer to the main economic sources of families, common types of income sources, such as wages, annual salary income, unit contribution of housing provident fund, housing subsidies, income from production and operation, income from contracting and leasing of enterprises and institutions, income from remuneration for labor services, dividends and interest income, and other income.