The blue-tailed hornbeam can reproduce. Generally, it breeds in low temperature months, and the breeding time and location will change every year. Breeding is possible year-round in places with little seasonal variation in water temperature.

During the months when the temperature is suitable, females produce monthly One egg at a time, as many as 40,000 eggs are expelled into the water at a time. After 25-28 hours of incubation of the fertilized eggs, the willow-shaped juveniles are born and develop rapidly, and then forage offshore in large numbers.