Taipusi County, Inner Mongolia, was selected as the study area. During the period of crop growth, eight tillage modes were disposed in the field, including no-till, subsoil tillage, conventional tillage, plowing with stalk mulch, surface tillage, ridge tillage A, ridge tillage B, and ridge tillage C. In the period of fallow farmland, five tillage modes were disposed including comparing stalk returning farmland and plowing, subsoil tillage, conventional tillage, low stubble of wheat and high stubble of wheat. During the growth period of rape, soil moisture from 0 to 70 cm depth of ridge tillage is the highest in the eight tillage modes, that of no-till and surface tillage are the lowest, and that of plowing with stalk mulch, subsoil tillage and conventional tillage was moderate. After harvesting of crop, content of soil moisture of high stubble of wheat is highest from 0 to 30 cm, those of subsoil tillage and conventional tillage are placed in the middle, and those of stalk returning farmland and plowing and low stubble of wheat are lowest.