Changli County, directly under the jurisdiction of Hebei Province (financial system), is subordinate to Qinhuangdao City, Hebei Province. Located in the northeast of Hebei Province and the southwest of Qinhuangdao City; The total area is 1212.4 square kilometers. By 2020, Changli County has 11 towns and 5 townships under its jurisdiction. According to the data of the seventh national population census, as of 0:00 on November 1, 2020, Changli County has 487989 permanent residents.

Han Dynasty, Shegang County. In 1983, Changli County was included in Qinhuangdao City; Changli County is the hometown of Chinese folk culture and art, the protection and utilization area of revolutionary cultural relics is divided into counties, the water-saving society construction reaches the standard, and the digital village pilot area in Hebei Province;

In 2020, the GDP of Changli County will increase by 39.8%; Total fiscal revenue and general public budget revenue increased by 146.2% and 92.8% respectively. The proportion of three industries is 22.9:39.8:37.3.