Abstract: Wuchuan area of West-to-east Mountain North was selected to study the affection of different residual stubble height of oats on soil moisture and nutrient content in the experimental field.The study showed that residual stubble effectively increased soil moisture and nutrient content and that organic matter and total nitrogen content were higher than other treatments for residual stubble height of 20cm.The study also showed that soil moisture content increased along with the increasing of the stubble height.