low soil water content is the main limiting factor for potato production in dry hilly area of Yinshan in Inner Mogolia,China.Improving the use efficiency of nature precipitation is a strategic method for potato production in this area.To solve this problem,the current study put forward the cultivation model of micro ridge with plastic cover and furrow sowing.The results showed that,micro ridge with plastic cover and furrow sowing model (1)Significantly improved integrated soil water content in the 0~60 depth soil.Especially,in the essential stages of potato plant growth,it enhanced the soil water content by 25.68%,14.26% as compared with flat cultivation with plastic film mulching and flat cultivation 35 days after emergence and by 28.92%,18.47% 55 days after emergence respectively.(2)Significantly enhanced potato tuber yield and the nature precipitation use efficiency.(3)Increased potato plants water uptake by 25.70% and 33.52% more per hectare than plants in flat cultivation with plastic film mulching and flat cultivation models,respectively.Thus,micro ridge with plastic cover and furrow sowing model was an effective way for development of potato in dry farming area because it significantly increased tuber yield and nature precipitation use efficiency.