As early as the Spring and Autumn Period and the Warring States Period more than 2,500 years ago, the Chinese began to use the sword. In the Spring and Autumn Period, the master of the sword-making sword, Ou Yezi, made three swords, and he said: "Long Yuan", "Tai Ya", "Working Cloth". Longyuan is too famous and has become synonymous with the sword. It has been to the Tang Dynasty. In order to avoid "Li Yuan", it was renamed Longquan, which is the Longquan sword we heard today. Longquan is a place name, located in Zhejiang Province. This small town is famous for its swords and celadon. It still retains the skills of hand-made swords. On May 20, 2006, Longquan Baojian forging skills was approved by the State Council to be included in the first batch of national intangible cultural heritage. During the Spring and Autumn Period and the Warring States Period, the war was mainly a car battle. The main weapon was the long weapon and the bow and arrow. The use of the sword was not big, but the water network of Wu Yue was staggered, the car battle was difficult to expand, and the battle was more, so for the sword The demand is even greater. In the Baojian factory in Longquan City, this craft that has been inherited for more than 2,000 years has become an open-access excursion project, and all aspects of the sword making process are unobstructed. Today's sword is no longer used as a weapon, but it is still a traditional handicraft of our country. It is deeply loved by the national leaders and is often presented to foreign leaders as a national gift. In the exhibition hall of Longquan Baojian Factory, there is Chairman Mao, and Deng Xiaopings national leader has made a sword for the national ceremony.