“…studies have pointed out that rural infrastructure investment is closely related to the transition period of China's rural economy, and society of the "three rural issues" (Svodziwa, 2018;Bacior and Prus, 2018), will influence the development stage of rural structural transformation of economy (Haggblade et al, 2010); the outdated traffic conditions, science and technology culture and health care have already affected progress of rural structural transformation of the economy (Wu et al, 2017), by investing in rural roads, promoting nonagricultural employment and immigration to urban areas, encouraging the transformation of the rural economic structure (Hine et al, 2019;Sha and Safaie, 2018;Yong and Meiqing, 2017). Existing studies revealed that rural infrastructural investment had obvious positive effect on farmers' income (Manjunath and Kannan, 2017;Zheng, 2017;Lokesha and Mahesha, 2017); however, the income composition of farmers is more complicated; in addition to agricultural income, there are also wage income, transfer income, etc,; the impact mechanism of infrastructure investment on various types of income is bound to be different, but few scholars have divided it for in-depth research (Ghosh, 2017;Ahmad et al, 2016). Although some scholars have pointed out that infrastructure investment is expected to have a positive impact on nonagricultural income, but it will have a negative impact on agricultural income; however, it does not clearly distinguish the impact of different types of infrastructure investment on agricultural income and nonagricultural income, which led to the lack of the explanation to mechanism of action of farmers' income benefited by infrastructural investment.…”