Abstract: Abstract The law of growth and development and integrated cultural techniques of winter wheat new variety “Linfeng 615”with water-saving and high yield were studied.The results show that tiller ability of “Linfeng 615”is strong with two tillering peaks.Its ear differentiation is slow in prophase and quick in late stages with a short period of organ generation.The grain filling presents a slow-quick-slow process with time.The comprehensive cultural techniques of “Linfeng 615”aiming at stabilizing ears,raising grains and grain weight involve fine seeding technique to establish the rational high quality population,scientific irrigation,balanced fertilization,diseases and insects control.Through complementation of these techniques,the yield of winter wheat can be increased to 8250～9000kg/hm².