Qinglong Manchu Autonomous County, under the jurisdiction of Qinhuangdao City, Hebei Province, is located in the northeast of Hebei Province, at the east foot of Yanshan Mountain, at the foot of the ancient Great Wall, with a total area of 3510 square kilometers. As of 0:00 on November 1, 2020, the county has a permanent population of 431000 (the seventh population census). As of October 2021, Qinglong Manchu Autonomous County has jurisdiction over 1 street, 11 towns, 13 townships, and the county government is stationed at No. 267 Yanshan Road.

In the 22nd year of the Republic of China (1933), Qinglong County was founded. On May 6, 1983, Qinglong County was under the jurisdiction of Qinhuangdao City. On December 2, 1986, Qinglong County was abolished and Qinglong Manchu Autonomous County was established. Qinglong County has a humid continental monsoon climate in the north temperate zone, with four distinct seasons, sufficient sunshine and large temperature difference between day and night. The five major river systems of Qinglong River, Shahe River, Duyuan River, Xinggan River and Qihe River are winding and winding through the whole territory.

Qinglong Manchu Autonomous County was listed as a national key county for poverty alleviation and development in 2001, known as "eight mountains, one water and one farmland". The county seat is 290 kilometers away from Beijing, 263 kilometers away from Tianjin and 116 kilometers away from Qinhuangdao Port. It is located at the development axis of Beijing, Tangshan and Qinhuangdao. In 2019, Qinglong Manchu Autonomous County completed a GDP of 12387920000 yuan.

Qinglong County has been identified by the State Forestry Administration as "the advanced county of national economic forest construction" and "the hometown of apples in China". Qinglong County is "the hometown of Xi culture in China", "one hundred best deep breathing towns", "the hometown of miscellaneous grains in Hebei" and "the hometown of folk culture and art in Hebei".

On September 29, 2018, the People's Government of Hebei Province issued a notice officially approving Qinglong Manchu Autonomous County to withdraw from the poverty stricken county sequence.