"the sixty years of Emperor Qianlong of the Qing Dynasty was the heyday of the development of feudal society in the Qing Dynasty. Porcelain production achieved unprecedented prosperity, and blue and white porcelain also reached its peak. At this time, Jingdezhen Imperial Kiln Factory has a large scale, under the management of ceramic officials, all kinds of porcelain are fired in the hundreds of thousands every year, whether the craft skills or decorative arts have reached the level of perfection. "