Cross-mountain crucian carp, also known as climbing perch, is a small fish, which can only be cultured in fresh water and mainly inhabit rivers or ponds. Cross-mountain crucian carp is rectangular with short lips but slightly larger eyes. The most typical feature of cross-mountain crucian carp is the spikes on both sides of dorsal fin. Once this kind of thorn pierces the human body, it will produce obvious tingling sensation, and this kind of thorn is also an important weapon for it to "climb mountains and cross mountains". Cross-mountain crucian carp also has a variety of feeding habits, mainly feeding on eggs laid by small fish, shrimp and even other fish in the pond. Mainly distributed in the southern region, mostly in Guangdong and Guangxi. It is native to China, and this kind of fish is edible.