Abstract: Urban sustainability is one of the sustainable development goals pursued by human society. It not only means the goal of integrating ecological, economic and social sustainability in cities, but also represents the potential to achieve green transformation. Compared to generally exploring the sustainable development of cities in the context of postmodernism and post industry in European and American countries, the modernization of harmonious coexistence between humans and nature indicates the unique modernization context of sustainable construction in China. Chengdu and Shenzhen, as the Park City models to achieve urban sustainability in China under the background of Ecological Civilization Construction, have formed Green Development Model and Eological Modernization Model based on their natural resource conditions, geographical advantages, social, historical, cultural and economic configurations. The former model focuses on the process of ecology economization to realize the value of ecological products and the latter concentrates on the process of economy ecologization to cultivate ecological elements. The exploration of Ecology-Scene compound development model in Park Cities is of great significance for the overall urbanization process of China from high-speed to high-quality ecological development and the whole world.