Shark fin is made by drying shark fin in the sun. Made of dorsal fin is called ridged wing, dorsal wing or split wing, with more wings and less meat. Consists of pectoral fins, called winged wings or upper green wings, with less wings and more meat; Tail hook made of tail fin, hook tip or tail fin; It's called purse-string wing, and its root is made of gluteal fin. Tail fin and gluteal fin have the most meat and the least wings.

Sun-dried fresh water wings or soaked in lime water; Salt water wings are soaked in salt water. Shark fin can also be classified according to whether its shape is complete or not. When it swells up, it becomes a whole wing, called a row wing, which is the top grade; After expansion, it expands into a strip, which is called spreading wings.