Abstract: To restore the population of the endangered species Tachypleus tridentatus,artificial domestication and breeding research of T.tridentatus was carried out in Luoyuan County,Fujian Province in 2021—2022.Following the observation results of their natural spawning and nursery grounds,the simulated spawning environment was constructed,and the mating pairs were induced to spawn naturally in the artificial environment.The spawning habitat preferences and ecological requirements for T.tridentatus were determined through artificial incubation and seedling cultivation.This paper summarized the artificial domestication and propagation technology of horseshoe crab,and analyzed the significance of artificial domestication and natural propagation of T.tridentatus,providing theoretical basis for species conservation by the protection and restoration of T.tridentatus populations and artificial incubation in Fujian coastal area.