The application of hand-carving technology in coin production is almost as long as the history of coin production. As early as the Pre-Qin period, China's coin production used hand-carving technology to carve mud molds, that is, to carve a coin shape on the mud, pour the metal solution into it, and form the coin. With the development of coin casting technology, coin casting has developed from mud molds, stone molds, and metal molds to stacking production after the Western Han Dynasty. However, no matter which coin casting method is used, the initial coin mold (ancestor mold) is hand-carved. By the seventh century AD, my country's coin casting entered a new stage of mother coin casting (sand casting), and the object of hand-carving evolved from coin molds to coin samples: before each new coin is cast, a sample coin sample is first carved. After approval, the coin sample is used as the master plate to mass-produce circulating currency. In the early 19th century, hand-made coins appeared in some parts of China. The molds for hand-made coins are also hand-carved. By the second half of the 19th century, with the introduction of Western machine coin casting technology, the traditional coin casting process in ancient China gradually withdrew from the stage of history. For a period of time, the production of molds in China's machine coinage was almost entirely dependent on Western countries. By the end of the Qing Dynasty and the beginning of the Ming Dynasty, as Western hand-carved mold technology began to be introduced into China, Chinese engravers gradually combined the traditional Chinese engraving technology of engraving patterns on molds with chisels as the main engraving tools and the Western hand-carving technology with engraving knives as the main engraving tools, and developed their own engraving techniques. With the widespread application of Western machine engraving mold technology, the molds of more formal coins are basically machine-carved, and hand-carved molds have gradually become an auxiliary process for repairing machine-carved molds. Hand-carving has evolved from the protagonist of mold making to a supporting role. After the founding of New China, all the molds of circulating coins, ordinary commemorative coins, and gold and silver commemorative coins issued were engraved by machines. Only a very small number of commemorative medals have been produced using hand-carved molds, but these products are sought after by a large number of coin enthusiasts. In order to inherit the cultural heritage of our ancestors and enrich the expressive techniques of coin art, in early 2006, the Shanghai Mint selected several young employees with certain professional skills from the company, and invited retired technicians who were originally engaged in hand-carving molds to provide them with guidance, striving to revive hand-carving in the near future.