It is said that this kind of carp lived in the old course of the Yellow River and found it difficult to breathe because of muddy water, so it evolved into four nostrils to adapt to the environment. Later, the Yellow River was diverted, and this species became a rare and famous fish.

The four-nostril carp was favored by the emperor because of its peculiar appearance and delicious taste. Legend has it that when Emperor Qianlong went down to the south of the Yangtze River, he took a dragon boat to play on Weishan Lake and suddenly saw several golden carp jumping out of the water. It is amazing that this fish has four nostrils when it is caught and watched. When the fish is cooked and eaten, the taste is extremely delicious, so the dragon is delighted: "Four-nostril carp is delicious!" He ordered local officials to take the four-nostril carp as a tribute and pay tribute to the court every year. Chairman Mao likes it very much.