Wild cats, pheasants, wild boar and monkeys can be seen everywhere in Gushiyong and other places. In order to prevent wild animals from hurting people, many immigrants built their houses on stone platforms. Things changed in the late Qing Dynasty and the early Republic of China, and bandits emerged one after another. Up to now, there are still many stockade remains, which were built to prevent bandits. All these have prompted local residents in neighboring waters to domesticate local dogs to look after their homes, take dogs to hunt and get rid of wild things (the local language refers to wild animals, especially tigers, leopards and wolves). These are extremely hurtful) and prevent bandits from looting, so they domesticated coyotes with strong physical strength, endurance, fighting capacity, sense of smell and loyalty, and called them waterfront dogs according to the principle of bloodline. Before liberation, it was mainly used for guarding homes of large families and hunting activities of farmers in mountainous areas. After liberation, it was mainly raised by hunters, and the Pingba area was attacked by other breeds of dogs, and the number dropped sharply, only owned by mountain hunters. In the early 1990s, Orion, Xiang Deyi, Liu Qiang and Jiang made a lot of textual research on the origin of this dog breed and confirmed it. However, due to regional differences, its body shape and coat color are slightly different. At that time, this breed of dog did not have a standard name, and even the locals did not know what kind of dog it was. In order to develop the dog breed resources in China, Mr. Zhou Guang named the East Sichuan hound scientifically and concisely according to its origin and main functions. 1994 recommended east Sichuan hound in the second issue of China Dog Breeding magazine. After Chongqing became a municipality directly under the central government, the geographical term "East Sichuan" became more generalized. In order to let more people know about this ancient and precious dog breed, it was decided to change its name to "Chongqing Dog" in April 2000 after research by Chongqing Pet Association (adjacent water is connected with mountains and rivers in Chongqing). According to archaeological research, dogs have served mankind for at least 2000 years. Over the years, a large number of dog-like pottery figurines have been found in Han tombs excavated in Chongqing (including adjacent waters), and the patron saint of the tomb door also has the figure of a dog. It can be seen that East Sichuan dogs were deeply loved by people more than two thousand years ago. For a period of time, due to social and environmental changes, the number of dogs in eastern Sichuan has been decreasing, becoming an endangered breed, and its purity has been increasingly influenced by dogs with different brands, which urgently needs people of insight to breed and promote.