The birth of China's locks has lasted for thousands of years. The wooden locks were found in the Yangshao cultural sites, the bronze locks appeared in the Western Zhou Dynasty, and metal locks were commonly used in the Eastern Han Dynasty. Until the mid-1950s, the ancient Chinese locks were withdrawn from the stage of history.
Ancient Chinese locks not only still have practical value, has become a precious historical proof, it reflects the history of carpentry and hardware from one side of the development process. It involves many disciplines, carpentry, smelting casting, cold forging, art painting and calligraphy, copper and wood carving as well as power, physics, science and technology, Geometry, psychology and other disciplines, can find traces in the lock, which reflects the social history of politics, economy, culture, customs and other aspects of the situation.