Abstract: In order to make full use of rainwater resources to deal with the problems of soil erosion and drought and water shortage in dry land rainfed agricultural areas, and to give full play to the important position of dryland in China′s grain production, this paper focuses on the construction of high-standard farmland based on China′s climatic conditions and crop planting practices. How to increase rainwater use efficiency, some effective measures are put forward from three perspectives:（1） increase soil water storage capacity, that is, deep plowing to increase the thickness of dryland soil effective layer；（2） increase soil effective water content, that is, to improve the soil structure and increase soil capillary pores；（3） increase supplementary water sources, that is, build small water source projects such as water cellars, pools, ponds, small dams and pumping stations；（4） increase the utilization efficiency of rainwater irrigation, that is, increase the micro-irrigation facilities equipped with simple water and fertilizer integration.