Abstract: Based on the little,unevenly distributed seasonal rainfall of Longdong dry fields,a new cultivation method that makes the maximum use of available precipitation was selected. The “year-round furrow film mulch” cultivation improves farming and growth conditions by increasing water use efficiency of soybean. The results show that the new cultivation technique can largely retain rainfall in winter and growth stage of soybean,which enhances moisture and manure conditions and output. It is a promising new faming method that increases the use efficiency of winter precipitation and ensures soybean production in Longdong dry fields.