PURPOSE: To easily display the arrangement state of sections or the state of an equipment in a building at a low cost.

CONSTITUTION: In the simple graphic device for building management, section arrangement data showing the arrangement of sections like partitions and equipment data corresponding to position data of equipments and character data showing the states of equipments are written in a display buffer 7 by a fixed data write part 5 and an equipment data write part 5, and equipment data stored in the display buffer 7 and character data stored in a character data storage part 4 are referred by a display part 8 to display the sections and states of equipments in the building on a display device like a CRT 9.