Abstract: [Objective]There are great water-saving potentialities in Xinjiang agriculture,compared with the irrigation level of advanced irrigation area.[Method]It is of great importance of designing different irrgiation treatments to study the index of group change,biological weight per lant,the properties of ear,leaf area,yield of winter wheat.[Result]The result indicated that the group index of water stress had effect on biomass,leaf area and tillering of wheat.The high yield of wheat was limited by the effect of photosynthetical nutrient and physiological process of crops.In the test area,jointing stage and boot stage were the great important period for irrigation of winter wheat.There were a certain difference of irrigation during boot stage,before boot stage and after boot stage.[Conclusion]The contribution rate of the early irrigation after spring was much greater than that of the late irrigation.