Nian Xiyao, whose name is Yungong, the owner of Ouzhai, was a person of Guangning, Fengtian (now Beizhen City, Liaoning Province) in the Qing Dynasty. The 10th year of Kangxi[1](1671) was born in the official court, subordinate to the Han army Xianghuang Banner[2]。 In his father's year, he became the minister of the Ministry of Industry and the governor of Huguang. In his younger year, he worshipped the governor of Sichuan and Shaanxi and the general of Fuyuan, all of whom were awarded the first class. Her sister is the imperial concubine of Dunsu, Emperor Shizong of Qing Nian Xiyao's official career started from the pen-post style of Kangxi Dynasty, and after repeated promotion, he traveled north and south, and became the chief envoy of Anhui Province. In the fifty-ninth year of Kangxi (1720), he was dismissed because of his participation; In the sixty-first year of Kangxi (1722), after the collapse of the holy ancestor, he was immediately appointed as the chief envoy to the governor of Guangdong, and was taught in the first year of Yongzheng (1723); In July of the third year of Yongzheng (1725), he promoted the right minister of the Ministry of Industry, and in November, he was convicted of taking the official position because of his younger brother Yao. The following year, he was re-employed, and was promoted to the general manager of the Internal Affairs Office. In July, he was appointed to tax Huai' an Customs and supervise the kiln affairs of Jingdezhen Imperial Factory. In the twelfth year (1734), the title of censor of Zuodu of the Canadian Procuratorate; In the thirteenth year of Yongzheng (1735), after the collapse of Sejong, he was impeached and reduced from office; He died in the third year of Qianlong (1738)[3]He was 67 years old. Nian Xiyao traveled all over his life, made friends with famous scholars, and was knowledgeable and involved in a wide range of things. He is well-versed in phonology, mathematics, painting and calligraphy, well-versed in visual studies, well-versed in kiln porcelain, well-versed in medicine, and has written abundantly and achieved great achievements[4]。