Green spaces and parks are the important component in the city to improve the urban environment and citizen's quality of life. In the past, urban parks only contribute to environmental conservation with a political context. And they were usually planned for, funded and maintained by local governments. Increasingly, however, urban parks are gradually changed their meaning, identity, functions and governance to consider urban sustainability goals. Thus, this article discusses from a transition perspective 'how the socialecological system of urban district parks in Seoul Metropolitan Area has transformed in the past decade.' It examines innovations are emerged in local green space provision, especially in political way, and how these niches have triggered shifts in green space governance in Seoul Metropolitan Area. To analyze these questions, this paper defined new domains for the change of governance by examine interaction in different social needs and objectives, improved health and physical recreation, food provision and community building. It also recognizes the landscape shift in urban ecosystem, infrastructures, regulations, acts, citizen awareness of climate change, quality of life and also citizen participation. From this research, we will identify the key drivers and barriers of the transition in green space provision, and suggest how city can achieve the urban sustainability.