Hairtail's body shape is flat like a ribbon, silvery gray, its dorsal fin and pectoral fin are light gray with tiny spots, its tail is black, the tip of hairtail is large, and it gradually tapers to the tail, and its height is twice as long as its head, with a total length of about one meter. It is fierce and mainly feeds on shrimps and squid.
It is mainly distributed in the western Pacific Ocean and Indian Ocean, and distributed in the Yellow Sea, East China Sea, Bohai Sea and South China Sea in China. It is also known as the four major seafood in China with large yellow croaker, small yellow croaker and squid.