Abstract: According to planting characteristics，growth law and production practice needs of spring maize in Wenyuhe irrigation district，measured data of spring maize irrigation test at Wenyuhe experimental station were used.Experiment and application of spring corn irrigation forecast were carried out to study relationship between water consumption，yield and economic benefit of spring maize under limited water supply.Water requirement of spring maize could provide basis for formulation and dynamic modification of irrigation water use plan in irrigation area.