Changji City, a county-level city under the jurisdiction of Changji Hui Autonomous Prefecture of Xinjiang Uygur Autonomous Region, is the capital of Changji Hui Autonomous Prefecture. It is located at the northern foot of Tianshan Mountain, the southern edge of Junggar Basin, and the center of Eurasian continent. The total area is 7971.03 square kilometers. It has jurisdiction over 6 streets, 8 towns and 2 townships.

Changji City, which means "prosperity and auspiciousness", is the seat of Changji Prefecture. It has successively won many national honors, such as the National Civilized City, the National Sanitary City, the National Garden City, China's Excellent Tourism City, the National Pilot City for Comprehensive Reform of Small and Medium-sized Cities, the National Innovative Pilot City, the National Smart City Pilot City, and the China Habitat Environment Example Award.

By the end of 2021, Changji has a total population of 404500. In 2021, Changji City will achieve a gross regional product (GDP) of 47.176 billion yuan, of which the added value of the primary industry will be 5 billion yuan, the added value of the secondary industry will be 15.521 billion yuan, the added value of the tertiary industry will be 26.655 billion yuan, and the structural ratio of the tertiary industry will be 10.6:32.9:56.5. The per capita GDP is 77597 yuan.