Main achievements: In the fourth year of Kaiping, Qian Liu mobilized a large number of laborers to build seawalls along the Qiantang River, and fixed huge gabions filled with stones on the riverside with wooden stakes to form a solid seawall, which protected the farmland along the riverside from tidal erosion. Because the stone pond has the function of storing water, the farmland along the river can benefit from irrigation. Qian Liu set up Liaohu Army to dredge Qiantang Lake, which is not only beneficial to its sightseeing irrigation, but also leads the lake into a golden pool, which is connected with the canal. Qian Liu has also set up four "Liao Water Army" with 7,000 or 8,000 people in Taihu Lake area to dredge lakes, dikes and rivers, so that Suzhou, Jiaxing and Changzhou can enjoy the benefits of irrigation.
Personal works: Give children worship to General Xifan Du Yan; Xie Tiepu table; Zhong Anji's main book photo; Jiangyin Order of Zhang Yun; Rules and regulations of Liu Ren, etc. ; Preface to Grand Genealogy; Qian Jiuzhou Temple Inscription: There are Luo Chengji and others.