The purpose of this study is to make it clear what the public service standard and its indicators of the neighborhood-unit basic parks among the city-planned-parks in the residential district are. On this paper, we analized the meaning of the size of a city-planned-park per person which is generally adopted as the indicator of the state of public services. The results are summerized as follows ; 1. The size of a city-planned-park per person is not related to the state of public services of the neighborhood-unit basic parks (such as Infant Parks, Children Parks, Neighborhood Parks and District Parks). 2. The size of a city-planned-park per person is effective as the indicators of city parks excluding the neighborhood-unit basic parks. 3. As the public service standard of the neighborhood-unit basic parks, the number of parks per elementary school district or the number of parks per ten thousand people is more suitable than the size of a cityplanned-park per person.