Liangping Zhang Duck is the main product of Chongqing Liangping Zhang Duck Food Co., Ltd. (originally known as: Chongqing Liangping County Dahe Zhang Duck Food Co., Ltd., the company changed its name in May 2010). Mr. Zhang, the founder of braised roast duck products, relied on his exquisite braised duck skills accumulated over decades and repeated practice of dozens of procedures such as live duck material selection, marinated ingredients formula, and processing methods, and finally formed this unique braised roast duck product. local flavor. Before liberation, Zhang Xinghai and his adoptive father Zhang Liangjun set up a shop selling barbecued pork in Taibaiyan, Wanxian County. In the early days of the founding of New China, Zhang Xinghai came to Xizhong Street in Liangshan County (now Liangping County) to sell barbecued pork. While inheriting the braised duck techniques from his adoptive father, he also conducted research on braised duck ingredients and techniques. After repeated trials, braised roast duck with certain characteristics was developed in July 1953. At that time, Zhang Xinghai stayed at the stall selling ducks until more than 10 o'clock in the evening every day, and went to the farmer's market to buy ducks at four or five o'clock the next morning, but he could only sell a few braised ducks every day.