Abstract: Taking Charybdis ferriatus as the research object, the developmental stages of Charybdis ferriatus were divided into 7 stages： T1, T2, T3, T4, T5, T6, and M stages for artificial seedling cultivation experiments. The results showed that ① from the average stage survival rate of crab seedlings, the highest survival rate in autumn and spring was in the T1 stage, which was 100%; The lowest survival rate was at the stage of juvenile development, which was 42.5%; the second lowest survial rate was at the large eye larva stage, accounting for 51.1%. During the breeding process of Charybdis pumila, the T6 stage metamorphosis to the large eye larva and the large eye larva metamorphocis to the I stage juvenile crab were the most important stages. ②The overall survival rate of the crab seedlings from the rust spotted crab to the T3 stage in spring and autumn was 48.1%, the overall survival rate of the T6 stage metamorphosis to the large eye larvae stage was 11.4%, and the overall survival rate of the seedlings that eventually developed into the I stage juvenile crab was 5.0%.

Key words: Charybdis feriatus, artificial breeding, mixed survival rate, stage survival rate, developmental cycle