The invention discloses a method for accelerating germination in beer barley malting by combining brassinolide (BR), 6-benzyladenine (6-BA) and gibberellic acid (GA), so as to change a process for accelerating barley germination by singly using the gibberellic acid during the prior malting, reduce the amount of the gibberellic acid, improve the germination ratio of the barley, shorten the germination time, and avoid increased hidden trouble of chromaticity of malts caused by using a large amount of the gibberellic acid; and the property of the brassinolide is utilized to improve the mixed-bacteria resistant performance of green malts so as to finally achieve the aims of improving the quality of the malts and reducing the production cost. The method comprises processes of grading, soaking the malts and germinating, and is applied in different periods of the barley germination process through using the brassinolide (BR) with extremely low concentration, efficiency and natural plant hormone and the gibberellic acid (GA) and cytokinin (6-BA) with different concentrations, thereby shortening the germination time by more than 24 h and improving five percentage points of the germination ratio.