Changle County, subordinate to Weifang City of Shandong Province, is located in the middle of Shandong Peninsula, 150 kilometers to the east from the coastal city of Qingdao, 80 kilometers to the north from the Bohai Sea. The meeting point of Bohai Rim economic Circle and Shandong Peninsula city group is the throat area from inland to Jiaodong coastal area. Jiao-ji Railway, Ji-Qing Expressway, National Road 309 run through the territory. Is approved by The State Council coastal economic open county, is also the famous sapphire city. It covers an area of 1,101 square kilometers and has a population of 638,000 (2018). Government resident Chengguan street. According to the seventh census, as of midnight on November 1, 2020, the permanent population of Changle county was 583,799.

In 2020, the GDP of Changle County reached 33.03 billion yuan, with a year-on-year growth of 4.1%.

Changle County has been rated as "China's safe construction advanced county", "China's Five Five-Year" law popularization and mid-term work advanced county, "China's scientific and technological progress advanced county", "China's charming famous county", "China's most desirable place", "Chinese culture international tourism city", Shandong best investment city and Shandong tourism strong county.

On February 13, 2020, it won the title of "Safe Agricultural Machinery" Demonstration County in 2019. On July 29, 2020, it was selected into the list of towns (counties) reconfirmed as National Health Care in 2019.