Changchun is the capital of Jilin Province and the provincial center of politics, economy, science and technology, and culture, famous as the“City of Automobile”“City of Film”，“City of Technology" and“City of Spring”．Changchun has a population of 7.6 million, including counties and county-level cities.
Changchun is the biggest automobile research and development center in China．Chinese first truck and car was birth in Changchun．
The railways of the city lead to Liaoning Province, Heilongjiang Province, Beijing, Tianjin and Tangshan, and link with the Democratic People's Republic of Korea and the Russian Federation．Changchun Airport is an international port, with 28 domestic and international air routes open now.
Changchun is one of the important market-places and good distribution centers in the Northeast.
The city has developed a steady trade tie with over 60 countries and regions in the world and established sister city relationships with nine foreign cities, such as Sendaisi in Japan, Birmingham in Britain, Flint in USA and Ulsan in the Republic of Korea．