Abstract: To analyze the contribution of agricultural mechanization to farmers’ income in Guangxi, grasp the regional process of agricultural mechanization in Guangxi, and put forward reliable Suggestions for promoting the process of agricultural mechanization and improving the level of agricultural mechanization. Six indicators affecting farmers’ income in Guangxi were selected and C-D production function was used to establish a mathematical model to analyze the time series data affecting farmers’ income in Guangxi from 2004 to 2018. The contribution rate of agricultural mechanization to farmers’ income was calculated according to the regression results and the corresponding elasticity coefficient. From 2004 to 2018, the contribution rate of agricultural mechanization to farmers’ income in Guangxi was 14.92%. Compared with 2008, the contribution rate of national agricultural mechanization operation income to farmers’ income was 6.51%, the contribution rate of agricultural mechanization to farmers’ income in Anhui province in 2018 was 29.40%. The contribution rate of agricultural mechanization to farmers’ income in Guangxi was lower. To expand the scale of production and operation and level off the land specifications; To popularize and research agricultural machinery suitable for Guangxi according to local conditions; Implement relevant agricultural machinery subsidies, maintenance, transfer of surplus labor and other work to improve the role of agricultural machinery to increase farmers’ income.