The Beijing-Tianjin-Hebei urban agglomeration will be constructed as one of the largest urban agglomerations in the period of the 13th national five-year plan, and it is also the strategic core region for implementing the outline of collaborative development of Beijing, Tianjin and Hebei provinces and promoting the coordinated development of the Beijing-Tianjin-Hebei region. Recently, researches of CAS have revealed the local coupling and telecoupling relationship between urbanization and the eco-environment in the Beijing-Tianjin-Hebei urban agglomeration.