In order to provide theoretical basis for the establishment water-saving irrigation schedule for spring wheat, a field experiment was conducted under deficit irrigation with spring wheat in Hetao irrigation area of InnerMongolia. The soil moisture content, spring wheat growth and yield index were measured for study the effects of irrigation water amount on soil water distribution and spring wheat growth. The research results showed that in the 0～100 cm soil layer, the soil moisture content of 100% ETc sufficient irrigation and 80% ETc deficit irrigation in-creased with the increase of soil depth. The soil moisture content of 60% ETc deficit irrigation was mainly concentrated in subsurface soil layer（20～40 cm） and middle soil layer（40～60 cm）. The deficit irrigation of 80% ETc had little effect on spring wheat growth and yield index. The spring wheat growth and yield index decreased by 5%～13% com-pared with 100% ET_c sufficient irrigation. The deficit irrigation of 60% ET_c had great effect on spring wheat growth and yield index. The spring wheat growth and yield index decreased by 10%～37% compared with 100% ET_c sufficient irrigation. The deficit irrigation of 80% ET_c is recommended as a result of the spring wheat growth and yield decreasing slightly in researching area, which can achieve the purpose of water-saving.