Hairy crabs can be bought in supermarkets or chain stores. For offline, the most convenient way to buy hairy crabs is in supermarkets and various markets, where you can buy fresh hairy crabs. The market near home is convenient to buy and the quality is better, which ensures the vitality of hairy crabs. Hairy crab is a kind of river crab, and its scientific name is Eriocheir sinensis. Widely distributed in the long coastline from southern Liaoning to the Pearl River in northern China, the Yangtze River system has the largest output and the most delicious taste. Generally speaking, hairy crabs refer to Eriocheir sinensis in the Yangtze River system.