PROBLEM TO BE SOLVED: To provide a method of improving a dough property of wheat flour, a breeding improvement method of wheat using the method, and a production method of food in which wheat flour improved the dough property by the method is contained as a raw material.SOLUTION: A method of improving a dough property of wheat flour and a production method of wheat by which the dough property of wheat flour is improved comprise the step of introducing part of 1H chromosome short arm in a plant of genus Hordeum producing hordein. A production method of food comprises the step of using wheat flour obtained from wheat which contains the part of 1H chromosome short arm in the plant of genus Hordeum producing hordein.
