The purpose of this study is to obtain the principle of service area of small-scale multi-care facility for aged through investigation real utility area and critical consideration about the planning concept. The following facts have been clarified. The utility area of the most of facilities have extended beyond the planned service area and the concept of community based care service has been emasculated. The reasons for this phenomenon are few users, few facilities and excessive competition to get users. The most important causes are poor permeation to people concerned and ambiguity in the planning concept.