From 2017 to 2023, the wild population of Gnathanodon speciosus, golden trevally, was domesticated and matured, a breeding population was maintained, and a preliminary study of its artificial reproduction techniques was conducted. The results showed that the fertilized eggs from the naturally matured and spawned breeding were transparent, spherical floating eggs with an oil globule in the yolk sac, 0.85±0.04 mm in egg diameter, 0.231±0.02 mm in oil globule diameter, and the number of eggs per gram was 3200, and the fertilized eggs were incubated for 17 h and 17 min in seawater with a water temperature of (28±0. 5)℃, salinity of 30, pH of 8.0-8.2 and DO of 6.05~7.13 mg·L-1 until the embryonic development was completed. Their embryonic development was divided into six stages, namely egg cleavage stage, blastocyst stage, protozoan embryo stage, neural embryo stage, organ formation stage and hatching stage. The total cumulative ecological temperature for hatching was 483.84 ℃-h, and the total length of newly hatched larvae was 2.01±0.14 mm, the incubation rate of fertilized eggs was 94.95%. Fish was cultured in seawater with water temperature of 29.5±2.0 ℃, salinity of 26~32, pH of 7.8~9.0, and DO of 4.90~7.50 mg·L-1, and four stages of incubation were completed, namely, early larval stage, late larval stage, juvenile stage and young fish stage. Survival rate was 91.49% from the hatching stage to early larval stage. The larval entered the juvenile stage at 14 dph, young fish stage at 26 dph, the body colour and morphology were basically the same as that of the adult at 45 dph, and the total length reached 51.05±4.81 mm, which was the completion of the seedling cultivation of the golden trevally, and the total survival rate of the larval was 32.62%. The results showed that the golden trevally could mature and spawn naturally under artificial culture conditions and could be artificially reproduced.