Liu Tongxun (1698- 1773), born in Zhucheng, Shandong Province (now Gaomi, Shandong Province), was a politician in the Qing Dynasty. Liu Tongxun's grandfather, Liu Bixian, is also a scholar. He was a member of the Guangxi Department of the Ministry of Housing and Urban-Rural Development. Liu Tongxun was born in a scholarly family and received a good education since childhood. In the second year of Yongzheng (1724), he was a scholar, and served as the minister of punishments, the minister of industry, the minister of officials, the minister of cabinet, the minister of imperial academy and the minister of military aircraft. Liu Tongxun, from an official to a military official, has been in power for more than 40 years. He is honest and outspoken, and has made remarkable achievements in official administration, military affairs and river management. In the thirty-eighth year of Qianlong (1773), he died suddenly on his way to Korea. When Emperor Qianlong heard the news, he lamented the loss of the minister and posthumously awarded the title of Taifu, posthumous title Zheng Wen.

Liu Tongxun's achievements:

In the seventeenth year of Qianlong (1752), Liu Tongxun entered the military department and won the trust of Qianlong. He helped the emperor Qianlong to strategize and make up his mind, and established an immortal honor for the prosperity of the country. Entrusted by Qianlong, Liu Tongxun toured the country every year to observe people's feelings. Liu Tongxun felt a heavy burden on her shoulders. Every time he makes a tour, he gives a brief introduction to Zhao Qi, goes deep into the people, understands the people's sufferings, and examines political gains and losses. People are also willing to tell him the truth. No matter what risks there are, Liu Tongxun will not relent and deal with them severely. Almost every time he visited, he handled several major cases. These major cases that shocked the whole country were discovered by Liu Tongxun after he found clues. The handling of these cases shocked corrupt officials and played a great role in ensuring the Qingming Festival in the Qing Dynasty.

Liu Tongxun is also an expert in water conservancy. Like the Ming Dynasty, the Qing Dynasty transported 4 million stone grains from the south of the Yangtze River to the north through canals every year for Beijing's use. At that time, the Yellow River entered the sea from Xuzhou south to Huai 'an east, and a section of canal borrowed the Yellow River. However, since ancient times, the Yellow River has suffered nine disasters in ten years and often silted up. Therefore, harnessing the Yellow River and ensuring transportation has always been one of the important policies in the Ming and Qing Dynasties. In the first year of Qianlong (1736), Liu Tongxun was sent to Jiangnan to study seawall engineering, so he knew the general trend of water conservancy and rivers in the world. Since the temporary dispatch of the governor in the 11th year of Qianlong (1746), he has been in command and management almost every time the Yellow River and the canal are in danger.

Evaluation of Liu Tongxun:

Emperor Qianlong once said, "If Tong Xun deserves a real prime minister, you should abide by the law." "I lost an ankle." ; It is recorded in the Draft of the History of Qing Dynasty: "The world says that a university student cannot be a real prime minister unless he is also a military department. It is not care but sensitivity that wins this position. Caution means no leakage, sensitivity means no delay, and the cardinal's responsibility has been fulfilled. Sejong, an old minister, returned to the country after reunification, especially when he decided to see the agreement with Gaozong. Perhaps it can be said that he has the demeanor of an ancient minister and is aboveboard! " . Thus, Liu Tongxun was the minister of humerus before and after the Qianlong period. He dares to speak out, and has made outstanding achievements in this respect, which is deeply relied on by Qianlong. He has been an official for more than forty years, but he has always been honest and clean. Zhao Qi is a rare good official.