Scientific research has proven that the origin of all goldfish species is genetic mutation and directional selection. Since the Ming and Qing Dynasties, the pot culture method has been popular, and the breeding conditions are suitable for the fish body to develop into a short round shape. The tiger head goldfish has a well-developed head tumor, a plump body, a graceful appearance, and a steady swimming posture. This conforms to the traditional aesthetic point of view, so it was selectively retained and became A veritable palace goldfish. As early as the late Qing Dynasty, it had been seen in the homes of officials and even in the palace. After liberation, tiger-head goldfish became a rare species raised in major parks and were highly sought after by goldfish lovers. According to the degree of curvature of the back, tiger heads can be divided into flat-backed tiger heads and arch-backed tiger heads. The characteristics of the arch-backed tiger head are that the back is arched and there is an obvious bend near the tail handle, causing the tail fin to grow downward, making it difficult to cause inversion or imbalance.