Chinese rapid urbanization has promoted its economic growth, while brought serious ecological environment problems simultaneously. Accompanying the development of agglomeration, the region urbanization form has gradually transformed from monocentric structures to polycentric structures which can be divided into two kinds of spatial structure:concentrated and dispersed polycentric structures. However, there still lack the research of the relationship between urbanization and ecological environment of the two forms of polycentric structure. This study focuses on two metropolitan areas in Fujian Province from 2011 to 2017 that Fuzhou metropolitan is defined as concentrated polycentric region and Xia-Zhang-Quan metropolitan is defined as dispersed polycentric region. The results suggested that:(1) Both of the two metropolitan areas are conducive to the improvement of regional urbanization, ecological environment and the coupling and coordinated development between urbanization and ecological environment (CCDUEE). (2) There's a convergence of urbanization development and CCDUEE in both two polycentric areas, except the ecological environment. (3) The lagging urbanization of the two metropolitan areas against the coordinated development between urbanization and ecological environment. The study provides significant references for optimizing the spatial structure and improving sustainable urbanization level in Fujian.