The invention discloses a gonad maturity promoting method for first filial generation parent fishes of aspiorhynchus laticeps. According to the method, the first filial generation parent fishes of the aspiorhynchus laticeps are placed in an outdoor pond or an indoor intensive culture pond, and then artificial domestication is performed; according to the culture environment, the dissolved oxygen concentration is larger than 5 mg/L, the pH valve ranges from 6.5 to 8.5, the ammonia concentration is smaller than 0.2 mg/L, the nitrite nitrogen concentration is smaller than 0.1 mg/L, the water temperature ranges from 1 DEG C to 28 DEG C, and the cold accumulated temperature requirements of the gonad development of the first filial generation parent fishes of the aspiorhynchus laticeps are met; when the water temperature is larger than or equal to 12 DEG C, water flow simulation is performed, and the flow velocity of water flow ranges from 0.1 m/s to 0.5 m/s. The gonad maturity promoting method for the first filial generation parent fishes of the aspiorhynchus laticeps has the advantages that the defects that aspiorhynchus laticeps wild resources are almost starved, and wild parents are extremely short can be overcome; the first filial generation reserve parent fishes of the aspiorhynchus laticeps stagnate at the third or fourth period and the gonad is developed to the fifth period under the artificial feeding condition, the key link of parental sources of the species protection is fundamentally solved, and the essential material basis is supplied to breed, breeder releasing and ecological remediation.