The invention relates to a method of promoting early maturity of gonad in Myxocyprinusasiaticus. The method includes: 1, selecting parent fishes; 2, cultivating the parent fishes; 3, promoting gonadal maturity by waterflow stimulation, namely when water temperature reaches more than 14 DEG C in early March, cultivating the parent fishes while using a floating pump as a power supply to drive water in an original tank; using in-tank circulating water formed by 0.1-0.5m/s unequal-speed water flows on the periphery of the tank to stimulate continuously for 15 days. Therefore, gonadal maturity of the parent fishes of Myxocyprinusasiaticus is promoted 5-8 days early. The method has the advantages that induced spawning rate of parent fishes, fertilization rate, hatching rate and fry breeding survival rate can be increased greatly.