This thesis analyzed the uniqueness of a toilet plane structure, centering on a case of Beautiful Public Toilet Construction Project under a project by Chungcheongnam-do and drew a conclusion as followings. Most of public toilets, constructed under a project by Chungcheongnam-do, were located in remains, tourist resorts, parks, and the outskirts of traditional markets. They were constructed at the selected location within an easy access of most user and plane structure was also designed so that the persons, in charge of management and maintenance, and the users could use them without difficulty. But some public toilets didn't establish the handicaps' toilet or made them difficult to sue due to location or size. The plane structure style was various such as a rectangular, stream line, or circle in accordance with location or building size. A circle-styled toilet offered a good view but didn't offer a good access or an effective space for users. In addition, when a handicapped person enters a toilet, he or she has to enter or go out of it through a sliding dor. So a constructor has to make progress of a work in accordance with this point.