Qianlong (China, September 25, 1711 – Beijing, February 7, 1799) was the fourth emperor of the Qing Dynasty (1644–1911/12), whose six-decade reign (1735–96) was one of the longest in Chinese history. Emperor Qianlong was famous for his long and successful reign, during which he led many military campaigns, including in northeast China against Turkish and Mongol threats (1755–1760), and expanded his empire with the creation of the New Province, now the Uighur Autonomous Region.Emperor Qianlong he was particularly interested in arts and culture, founded many libraries and museums, and supported the development of Chinese literature and art. During his reign, China's economy and culture flourished, and it reached the largest territorial extent of the Qing dynasty. The ruler was deeply attached to his first wife, Empress Xiaoxian, whom he married in 1727, and with whom he raised a son, whom he intended to be his own successor, but the son died in 1738. Emperor Qianlong abdicated in 1796, but retained ultimate power until his death in 1799, making him one of the longest-reigning monarchs in history.

During the reign of Emperor Qianlong (1711-1799) of China, the Qing Dynasty flourished economically and culturally. There was also a significant development in the field of coinage, and the coins minted in the Qianlong era are still of great value. During the reign of Emperor Qianlong, the following coins were minted: Silver coins, these coins were the most valuable coins of the reigning era. The silver coins minted in the Qianlong period weighed 37.3 grams and were inscribed "Da Qing Qianlong tongbao" (Money of the Great Qing Qianlong period). Gold coins were rarer than silver coins. Gold coins minted in the Qianlong period weighed 3.7 grams and were inscribed "Da Qing Qianlong huangqian" (Imperial coin of the Great Qing Qianlong period). Copper coins were the most commonly used money in the Qianlong period. The copper coins minted in the Qianlong period weighed 2.5 grams and were inscribed "Da Qing Qianlong tongbao" (Great Qing Qianlong period money). The quality of the coins minted in the Qianlong period was very high. The material of the coins was carefully selected and the minting process was precise. As a result, coins minted in the Qianlong period have retained their value for centuries. Coins minted in the Qianlong period are also important historical documents. The inscriptions and images on the coins provide information about the economy, culture and history of the era.