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Lobsters mature in 9-12 months of age, the mating season is generally from late April to July, and the peak period of group mating is in May. During mating, the female shrimp lies on her back on the surface of the water, and the male shrimp clamps the female shrimp's forefoot with the dragon's foot on it, and the step foot holds the female shrimp to insert the adapter into the female body, and the mating time is 10-30 minutes. 3-10 hours after mating, the female shrimp begin to spawn, which is a one-time spawn, and the eggs produced adhere to the bristles of the gastropod. The amount of eggs to hold is about 500-1500, which varies according to individual size.
The length of embryonic development is closely related to the level of water temperature, the incubation time is short when the water temperature is higher, and the incubation time is longer when the water temperature is lower. The hatched juvenile shrimp are still attached to the swimming feet of the broodstock and grow for a period of time under the protection of the mother.
Lobster juveniles that grow to different stages are attached to the mother's abdominal swimming feet, and the largest lobster larvae are 1.0-1.1 cm long. From the early autumn of the first year after the lobster hatches, the growth, development and wintering process of lobster larvae are epiphytic to the mother's abdomen, and it is not until the spring of the following year that it leaves the mother's life. Lobsters breed their offspring in a way that ensures a high survival rate for offspring. Lobsters are types that spawn multiple times a year.
When the water temperature rises above 20 °C, the broodstock begin to spawn, and the spawning season can last for 6 months in eastern Guangdong, and can spawn 3-4 times a year. The amount of eggs laid varies with individual size and degree of gonadal development, and generally 300-1000 eggs are laid per egg. Female shrimp with larger individuals carry more eggs.