The purpose of this paper is to show the structure of educational assistance organizations related with a primary school, by analyzing characteristics of educational activities and visions of relationship between organizations and a primary school.
Main results are as follows;
1) The 7 types of organization, which were constituted of 3 hierarchies (comprehensive - multiple functional- specific functional organizations), were grasped.
2) For the future organizations, it is required that they participate in the school management with residents or take part in roles of educational activities about community.
3) The various combinations of 7 types in each school are cleared. The activation of comprehensive organizations leads to the development of the others.
