Changji Hui Autonomous Prefecture, referred to as "Changji Prefecture" for short, is an autonomous prefecture under the jurisdiction of Xinjiang Uygur Autonomous Region. Its capital is located in Changji City. It is located at the north foot of Tianshan Mountains and the southeast edge of Junggar Basin. The terrain is high in the south and low in the north, tilting from southeast to northwest. It belongs to the temperate zone and is a typical continental arid climate; With a total area of 73900 square kilometers, it has jurisdiction over 2 county-level cities, 4 counties and 1 autonomous county. According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent population of Changji Hui Autonomous Prefecture was 1613585.

Xinjiang Changji Hui Autonomous Prefecture was the only way to Central Asia and Europe along the new northern route of the ancient "Silk Road". It has been the throat of the western region and the barrier of the northern region since ancient times, and is an important part of the core area of the Xinjiang Silk Road Economic Belt. North Xinjiang Railway, National Highway 312, National Highway 216, Provincial Highway 115, and Tuwuda high-grade highway run through the whole territory. At the same time, Changji is also a pilot city for the intellectual property strategy promotion project for small and medium-sized enterprises. In 2019, it was selected into the list of national agricultural product safety and quality cities.

In 2018, Changji Hui Autonomous Prefecture achieved a gross regional product (GDP) of 136.73 billion yuan, an increase of 5.1% over the previous year at comparable prices. In 2020, Changji Hui Autonomous Prefecture will achieve a GDP of 138.725 billion yuan, an increase of 5.3% over 2019.