Soft-shelled turtle, commonly known as soft-shelled turtle, water fish, tuanyu and tortoise, is an oviparous reptile and lives amphibious. Carassius auratus is delicious and nutritious, and has the functions of clearing away heat and nourishing yin, calming the liver and calming the wind, softening and resolving hard mass. Turtle is not only a delicious food on the table, but also a widely used tonic medicine. There are mainly Chinese soft-shelled turtle, Chinese mitten-handed crab, Chinese soft-shelled turtle and Chinese mitten-handed crab in China, among which Chinese soft-shelled turtle is the most common, and it was listed in the List of Terrestrial Wild Animals with National Key Protection or Important Economic and Scientific Research Value issued by the State Forestry Administration on August, 2000.