A partition device using a frame has increased freedom of arrangement of wiring in the device. The partition device (1) has a frame (2) and panels (8). The frame (2) forms rectangular frames by pillars (3) arranged substantially vertical to a floor surface and by lateral plates (6, 7) for interconnecting the pillars (3). The panels (8) are installed on the rectangular frames, formed by the frame (2), from both the front and rear surfaces of the rectangular frames. The frame (2) has wiring holes (63, 73), and, among wireable inner spaces formed by the rectangular frames and the panels (8), inner spaces adjacent to each other with the frame (2) held between them are interconnected via the wiring holes (63, 74).