Changge City, a county-level city under the jurisdiction of Henan Province, is managed by Xuchang City. It is located in the middle of Henan Province and the north of Xuchang City, 34 ° 09 ′ - 34 ° 20 ′ N, 113 ° 34 ′ - 114 ° 08 ′ E, and Xinzheng City in the north; Yuzhou City in the west; Weishi County is connected to the northeast; Yanling County is located in the southeast, 21.4 kilometers from north to south, 51.9 kilometers from east to west, with a total area of 650 square kilometers. According to the data of the seventh national population census, as of 0:00 on November 1, 2020, Changge has 710033 permanent residents. Changge City is the hometown of Ge Tian, the ancestor of music and dance, and has been designated as the "Millennium Ancient County" by the Ministry of Civil Affairs.

In the Spring and Autumn Period, in the fifth year of Duke Yingong of Lu (718 B.C.), the Song people attacked Zhengwei Changge and found its name. In the Warring States Period, Han Aihou killed Zheng in the first year of King Lie of Zhou (375 B.C.), and Changge belonged to Han. Later (361 B.C. - 350 B.C.), it was taken by Wei, and Changge returned to Wei, and was renamed Changshe. In the sixth year of Emperor Kaihuang of Sui Dynasty (586), Changge County (now the old city) was analyzed and set up. Changge belongs to Xuzhou. After the founding of the People's Republic of China, Changge belonged to Xuchang Special Region. In 1969, the special area was changed into a region, and Changge belonged to Xuchang region. In February 1986, Xuchang District was abolished, and Xuchang City was upgraded to a provincial city under the jurisdiction of Changge. On December 14, 1993, Changge County was changed from a county to a city and was subordinate to Xuchang City. As of June 2020, Changge City has jurisdiction over 4 streets and 12 towns, and the municipal people's government is stationed in Getian Avenue.

In 2021, the city's GDP will reach 82.48 billion yuan, an increase of 5.3%; The general public budget revenue was 3.72 billion yuan, up 12.9%; The added value of industries above designated size increased by 7.3%; Fixed asset investment increased by 10.5%. The per capita disposable income of urban residents reached 35485 yuan, an increase of 6.8%, and that of rural residents reached 21868 yuan, an increase of 8.7%.