Longquan sword is produced in Longquan City, Zhejiang Province. Longquan sword, also known as Longyuan sword, originated in the Spring and Autumn Period and the Warring States Period and has a history of more than 2,600 years. It is a famous sword in ancient China, representing the quality of incorruptibility and purity. Legend has it that Longquan Sword was forged by two famous ancient swordsmen, Ou Yezi and Ganjiang, with extraordinary craftsmanship and legendary story background. Longquan sword is famous for its exquisite skills, beautiful appearance and excellent sword quality. It is not only known as the masterpiece of China and Gu Jian in history, but also plays an important role in the field of culture and art, and is regarded as one of the precious heritages of China's traditional crafts.