Effects of different irrigations on paste properties of starch of winter wheat were studied under rain sheltered pot-culture condition with two cultivars,Yumai 34(a strong gluten wheat) and Yumai 50(a weak gluten wheat).The results indicated that the major paste parameters were significantly different at 0.01 levels between two gluten cultivars.BD and PT of Yumai 34 were lower than that of Yumai 50,and the other paste parameters of Yumai 34 were higher than Yumai 50.Water regulating had strong effect on paste properties of starch of two cultivars.The paste properties of starch of Yumai 50 with 4 irrigations and one irrigation of heading were better and that with one irrigation of jointing was bad.That of Yumai 34 with one irrigation were better and with 4 irrigations were bad,and it was not significantly different between one irrigation of jointing and heading.Correlation among paste parameters of starch of two cultivars were analyzed.That of Yumai 50 among major parameters was significantly correlative but that of Yumai 34 was not significant.It was more possible to improve starch quality of Yumai 50 than Yumai 34 by cultivation.