Abstract
The new design concept for the middle school is developed as the seventh curriculum is published. However, the credible data for a plan study and spatial organization, and the type of rooms, and using area are hardly found. On this background, the purpose of this study is to provide fundamental resources for the design of middle schools and to recognize national status of plan organizations of middle schools with analizing the space and the type of rooms of collecting 150 schools' architectural plan drafted by city, province education office for 4 years(from 1997 to 2000) As a result, we know that although the class size of school is same, the area for school buildings is very diverse. Then, in order to increasing the area and to develop school buildings' quility, the meaning of standard level should be changed urgently minimum size to optimun size.