Based on the analysis of mathematical economic models and using panel data from Chinese 31 provinces (excluding Hong Kong, Macao and Taiwan) from1978 to 2019, empirically analyzing the influence of agricultural mechanization on Chinese urban-rural income gap by using the comprehensive FGLS (Feasible Generalized Least Square) estimation. Finally found that, in China, agricultural mechanization can significantly narrow urban-rural income gap, and Suggestions are put forward to improve the level of Chinese agricultural mechanization and narrow Chinese urban-rural income gap.