Crabs are fed with bait 2 ~ 3 times a day, such as soybean milk, fish and shrimp paste. And the feeding should be mostly in the surrounding shallow waters, and the feeding amount should be calculated as 4% of the body weight, and pay attention to the weather, water quality sanctions, individual growth and the number of organisms competing for food at any time.

The whole process of intensive cultivation in ponds mainly depends on artificial feeding, and other plant feeds account for 25%. There are three main types of feeds.

(1) Full-price special compound feed for river crabs;

(2) Animals: small miscellaneous fish in seawater and fresh water, corpses of various animals, snails, mussels, blood of livestock and poultry, fish meal, silkworm chrysalis, etc. ;

(3) Botany: aquatic plants, duckweed, Alternanthera philoxeroides, Sophora alopecuroides, black algae, etc. And commercial feed: sweet potato, potato, cereal, bran, feed bran, etc. Like pond culture, the feeding method of river crabs is also "four observations and four determinations", that is, observing seasons, weather, water quality and crab activities regularly, regularly, quantitatively and qualitatively.