Rugao is located in the north of the Yangtze River Delta. It is located at the “T” intersection of the Yangtze River and the Yellow Sea. It has more than 300 longevity elderly people over 100 years old. It has been recognized as one of the world's six longevity towns by the International Natural Medicine Association and the World Changshou Township Science Certification Committee. . Among the centenarians, 66.2% of the real-time rice wine and homemade rice wine are often used. For example, glutinous rice wine has become one of the passwords for longevity, such as 皋 yellow wine and Rugao longevity.