The development of rural areas in western China has become a new hot topic in the context of the fight against poverty. At the same time, the knowledge economy has brought about a second revolution in human capital, which has significantly enhanced the economic status of human capital. This paper constructs an empirical model using panel data on rural residents' income from work, income from farming, individual human capital input, and government human capital input from 1998-2018 in twelve provinces (cities) in western China to explore the impact of human capital input on rural residents' income in the western region. The study shows that: (1) The personal human capital input of farm households in western regions has a positive impact on the increase of both labour income and farm income, and the impact on labour income is greater; (2) Both personal human capital input of farm households and government human capital input has an impact on farmers' income in western regions to some extent; (3) Except for Shaanxi and Qinghai provinces, the impact of government human capital input on the increase of income is greater than that of farm households the impact of individual inputs was greater.