The clear water hairy crabs in Yangcheng Lake enjoy the reputation of "king of crabs", and their appearance features are: green back, white belly, yellow hair, golden claws and strong body. Green back, crab back is bright, refreshing and translucent. It is pure red and bright red after cooking. Different from other crabs in the lake area, it is gray, dark and earthy. When cooked, it is reddish, with gray in the red. White belly, crab belly is white and shiny, giving people a beautiful feeling of jade (with the development of aquaculture, Yangcheng Lake hairy crabs are also cultured in some places with deep water, so a small number of crab bellies in other lakes are gray or gray, or white and unclean. Yellow hair, fluff on crab claws and whiskers on crab claws are all yellow. Male crabs are dense, soft and free of sundries. The hair on the crab claws is bright yellow. The crab hair in other lake areas is earthy and unclean. Golden claws, crab claws are as golden as tobacco. Crabs in other lake areas have no obvious golden yellow claw tips. Strong, Yangcheng Lake hairy crabs are strong and sturdy, with two claws and eight claws, and can crawl freely on the glass. Compared with other lake crab, Yangcheng Lake hairy crabs of the same size are much heavier, and there is no water with shells.

Yangcheng Lake hairy crabs are the "king of crabs" with good color, fragrance and taste. "The tender jade is full, and the shell is convex with red grease." The orange-red crab yellow, white jade paste and white tender crab meat are all excellent in color, fragrance and taste, which are incomparable to other crabs in the lake area. No wonder Mrs. Zhang Taiyan and Mrs. Tang Guoli said in a poem: "Yangcheng Lake crab is not good, why should I live in Suzhou in my life?"