The tiger frog, also known as the water fowl, is a sturdy and robust frog that is known as the "Frog of Asia".

The female tiger frog is larger than the male, with a body length of more than 12 centimeters and a weight of 250 to 500 grams. The skin is rough, with dark irregular markings on the head and side of the body. The back is yellowish green and slightly brown, there are more than ten rows of longitudinally arranged skin ribs, skin ribs scattered between small warts. The ventral surface is white, also with irregular markings, and there are grayish-brown spots on the pharynx and thorax. The anterior and posterior limbs have transverse spots. These spots are so named because they look slightly like tiger skin. The toes are pointed and rounded, with full webbing between them. The forelimbs are stout, and the finger pads are developed and gray. The male frog has a pair of external vocal sacs. It has been listed as a national key protection animal of class II.

The head of the tiger frog is generally triangular, and there is no obvious boundary between the head and the trunk. The tip of the head is pointed,

which reduces resistance when swimming and facilitates fast swimming. The mouth is very wide and is generally rarely open except for feeding. The eyes are located on the dorsal side of the head or on both sides of the head. Above and below

Both have eyelids, and attached to the eyelids are transparent transient membranes that fold inward, which move up to cover the eyeballs during diving. The external nostrils have a nasal valve that can be opened and closed at any time, thereby controlling the flow of gas in and out. Males have a pair of light blue sac-like protrusions on the ventral surface of the head on the lateral part of the pharynx, called the vocal sacs, is a **** sounders, can expand the larynx to emit such as barking like a loud bark, play a role in attracting females.

The tiger frog has two pairs of limbs on its trunk. The front limbs are slightly shorter, each with 4 toes, mainly to support the front of the body, but also to assist in feeding and swimming body balance. The hind limbs are longer, each with 5 toes, webbed between the toes, mainly in the water swimming and jumping on land to play a propulsive role. The whole body is golden yellow with black spots.