The national conference on the annual quality of national advanced vocational education was held in Nanning. Heads of dozens of schools from Guangxi, Yunan and Hainan talk about improving the training quality of advanced vocational education staff. China's advanced vocational education is facing three challenges including issues of teachers, management ability and improper idea of operation. They suggest the advanced vocational education schools exposing the quality problem of the staff "in the sunshine.", reports Chinanews.com