In the thirteenth year of Yongzheng (1735), Emperor Gaozong of the Qing Dynasty ascended the throne and changed the reign of Emperor Qianlong. The requirements for casting "Qianlong Tongbao" are still one cent and two cents, and the calligraphy of the coin is more exquisite than that of the Yongzheng period. Initially, the Qing government continued to implement deflationary policies. The money bureau has increased or decreased compared with the Yongzheng period. First, in the fourth year of Qianlong, the three bureaus of Baohe, Baogong and Baoji were stopped. In the fifth year of Qianlong, the Baofu bureau was opened. In the seventh year, the Baogui bureau was opened. In the tenth year, the Baoji bureau was opened. Straight game. Before the Qianlong Dynasty, tin was not added to the money made, but was made of copper, lead, and zinc, which was called "yellow money." money". Officially, it is said to prevent private money, but in fact it is nothing more than weight loss. "In the 40th year of Qianlong's reign, the situation of private coining became more and more prosperous. Officials from various provinces had stolen coins. The government was unable to do anything about it. In addition, Yunnan's copper production decreased year by year, causing the price of copper to skyrocket and the cost of coining to rise. The Qing government then took another step. Under the deflationary policy, minting was stopped in Baozhi, Dali, Guangxi, Lin'an and other bureaus, and merchants were encouraged to import copper materials from overseas. However, these measures failed to fundamentally solve the problem. Although private castings decreased, official money disappeared. With the increase of money in private transactions, the phenomenon of using ancient coins appeared. Fifty years after Qianlong, Baozhi and other bureaus were opened one after another, and the standards for coining coins were relaxed. As a result, the quality of coins made in the later period of Qianlong was uneven. Qi, the situation is worse than before. In addition, during the Qianlong Dynasty, "Qianlong Tongbao" red money (also called Pu Qian, "Pu" means money in Uyghur language) was produced in Xinjiang. It was made from copper produced in Xinjiang. There were casting shops in various regions since then.