The invention relates to a directional
mating and breeding method in
Eriocheir sinensis breeding, comprising the following steps of: referring to the
Eriocheir sinensis standard GB / T19783-2005, selecting male and female
Eriocheir sinensis individuals with mature gonads from different
species groups in the first ten-day period of November as parents, after labeling, breeding the male and female Eriocheir sinensis individuals separately, and strengthening cultivation; in the last ten-day period of November,
pairing and putting the parents subjected to cultivation strengthening into cylindrical net cages weaved by
polyethylene soft plastic, wherein each cylindrical net cage is 50 cm in
diameter and 60 cm in height, and the
salinity of water is 0.209; distributing a male crab for each net cage, wherein the ratio of female to male of full sib directional
mating is 1:1, and the ratio of female to male of half-sib directional
mating is 2: 1 or 3: 1; putting the obtained egg-carrying crabs into a 2*667 m<2>*1.5 m outdoor soil pond for
overwintering cultivation; in the middle ten-day period of April of next year, pumping out the water in the pond to catch the egg-carrying crabs, putting the egg-carrying crabs into cylindrical net cages weaved by
polyethylene soft plastic, wherein the cylindrical net cages are respectively 20 cm in
diameter and 50 cm in height and are respectively arranged in net boxes in size of 3*2*1.5 m in other soil ponds respectively, and one egg-carrying crab is arranged in each net box; after the culturing of young crabs is finished, taking out the parents, and performing soil pond cultivation for the
juvenile crabs according to the Eriocheir sinensis artificial breeding standard SC / T1099-2007.