Donghai Laowuzheng Brewing Technology (Extended), a traditional skill project in the fourth batch of Lianyungang Municipal Intangible Cultural Heritage Representative Extension Project List. The origin of winemaking is very early in human history. In the Paleolithic Age, it was discovered that wild fruits fermented and brewed fruit wine. In the Neolithic Age, primitive agriculture emerged and grain winemaking appeared. The invention of common winemaking was far earlier than the legendary Xia Dynasty. From the primitive cultural site of Hemudu in Yuyao, Zhejiang, not only a large amount of rice but also a large number of wine utensils were found. According to the research of archaeological experts, it was determined to be the earliest wine utensils found in China, which shows that the history of grain winemaking in China is at least 7,000 years. Taolin wine was first brewed during the Yongxi period of the Northern Song Dynasty, and it has been more than a thousand years. Before liberation, Taolin Ancient Town had nine wine lees workshops such as "Nanmaolong" and "Hengsheng". At that time, there was no Taolin wine store in Shanghai. At the beginning of the 21st century, Taolin brewing technology entered a new period of development. Taoyao Brewing Co., Ltd. has inherited the technology of Taolin wine and maintained the traditional brewing technology and traditional wine culture of Taolin wine. The production technology of Taolin wine represented by Taolin Brewing Co., Ltd., with its unique formula, long-standing culture and exquisite and skilled five-old five-甑 technology, combined with modern brewing technology, has formed excellent brewing technology, unique wine style and profound wine culture. Taolin wine has achieved the organic combination of people's life interest and cultural accumulation, with huge development potential and good development prospects.