Kites originated in China, and the earliest kites were made by the ancient philosopher Mo Zhai. After the China kite came out, it was quickly used for military needs such as transmitting information and crossing obstacles. During the Tang and Song Dynasties, due to the emergence of the paper industry, kites were made of paper paste, which quickly spread to the people and became people's entertainment toys. China's traditional kite flying skills can be summarized in four words: tying, pasting, painting and flying. Referred to as "four arts". Simply understanding these "four arts" means kidnapping children, pasting paper, painting colorful flowers and flying kites. But in fact, the connotation of these four words is much broader, which contains almost all the technical contents of traditional Chinese kites. For example, "binding" includes: selecting, splitting, bending, cutting and connecting. "Paste" includes: selection, cutting, pasting, trimming and proofreading. "Painting" includes: color, background, description, dyeing and trimming. "Release" includes: wind, line, release, adjustment and collection. The comprehensive application of these "four arts" will reach the level of kite design innovation. There are four legends about the origin of kites. Doors and windows say; Sailing boats and tents say; The bird said; Li Wei said. However, the conclusion that kites originated in China is generally recognized by the kite industry in the world. Hat and leaf theory