One school with four cards: Banan Vocational Education Center, Banan Adult Education Center, Chongqing Banan Adult Secondary Vocational School and Banan Vocational Middle School. From June, 5438 to February, 2006, with the approval of Chongqing Municipal Education Commission, it was established by integrating the resources of six schools, including Daojiao Vocational Middle School, Yimin High School and Light Industry Machinery Factory Branch, based on Banan Vocational School. A comprehensive school-running institution integrating secondary vocational education, adult junior college (undergraduate) education and various short-term training. It is the first batch of provincial key vocational schools after Chongqing was directly under the central government, and it is also the first batch of national key vocational schools re-adjusted and recognized by the Ministry of Education.