The purpose of this study is to seek the way of public open space in everyday life as community space which causes to communicate between local community and residents. we should detract the policy agenda through the research of a plan to diversify activities in leisure space in everyday life and the case study of leisure spaces which were successfully promoted associating with local community. To understand the way of promoting leisure activities in public open space in everyday life, the research methods are as follows : 1) Preparatory study review to extract a general idea of "public open space", and "leisure space in everyday life" 2) The case studies of well-promoted public open spaces in everyday life 3) Through the site visits of public open spaces in everyday life, we research on the actual condition. According to the preparatory study review, we classified types of public open spaces in everyday life into categories: greenways, waterfronts, parks in residential area, utilizing open space of public buildings, the public open space offered in private site lot, and utilizing derelict open land.