It is an amphibian with a tail order and a family of hidden gill salamanders. It is an aquatic and nocturnal amphibian, the world's second largest baby fish with a large body size. The male has a total length of 627.5 millimeters and the female has a length of 665.1 millimeters. The head is large and flat, slightly longer than the width, with a blunt and rounded snout slightly protruding from the lower jaw; The nostrils are small and very close to the tip of the kiss; Small eyes without eyelids, large cleft mouth, and obvious lip folds at the corners of the mouth. The Chinese giant salamander and the Japanese giant salamander have very similar body shapes, with the main difference being that the former has small and regularly arranged warts on their heads, while the latter has large and irregularly arranged warts.