Sun Moon Lake Old Tea Factory is located in Yuchi Township, Nantou County, and is a distinctive attraction that combines tea industry history, traditional tea-making craftsmanship, and natural scenery. The factory preserves traditional buildings and tea-processing equipment from the Japanese colonial period, showcasing the development and production process of Taiwanese black tea. Through guided tours, visitors can learn about tea harvesting, withering, rolling, fermentation, and roasting, and enjoy tasting a variety of teas famous for Sun Moon Lake black tea.