Because of his father's relationship, Liu Yong took part in the senior high school entrance examination and palace examination in the same year as a Yongzheng juren, won the second place in the second place, was awarded the title of Jishi Shu, imperial academy, worked as an editor in the prose museum, and was soon promoted to a lecturer, which became the starting point of his career. In the twenty-first year of Qianlong, Liu Yong was released as a local official. During his tenure as an official, Liu Yong basically inherited his father Liu Tongxun's integrity, ability and high efficiency, and tried his best to rectify the shortcomings accumulated in the imperial examination and the bad habits in officialdom, so as to do practical things for the people.
Qianlong thirty-four years, awarded Jiangning magistrate. He was fair and honest, and his reputation spread far and wide. The people admired Liu Yong's character and compared him to Bao Zheng in the Song Dynasty. Later, in the early years of Jiaqing, Tanci "Gong Liu Case" was adapted from Liu Yong's story of solving doubts and making decisions for the people when he was a magistrate in Jiangning. In the forty-seventh year of Qianlong, Liu Yifeng was transferred to Beijing as the suggestion of Zuodu. At that time, small Shenyang was a hot topic, and Liu Yong could only pretend to be a snake and scorpion, humorous and tolerant, which showed the other side of his being an official: in the face of the special favor of small Shenyang in Qianlong, Liu Yong had to be silent and self-sustaining, and he was ridiculous.
Liu Yong was born in a noble family and his ancestors were all scholars. Liu Yong has been an official for more than 50 years, and his career has been ups and downs. When he reached the highest position, he was a great scholar in Tijen Pavilion. Generally speaking, he was honest and clean, inherited the mantle of his father Liu Tongxun, and became an important minister in Qianlong and Jiaqing periods.