To provide a multi-display control method, control program and control device that reduce spatial movement of a presenter and make it possible to easily and intuitively perform switching screen display to another display device and editing displayed data.

The multi-display apparatus includes: a master display device 100 having a touch panel 10 and a display section 20; (at least one) slave display devices 200, 300, and 400 having display sections; and a control device 150 that connects the master display device 100 and slave display devices 200, 300, and 400 and exerts control relevant to the displays of the master display device 100 and slave display devices 200, 300, and 400 based on an input from the touch panel 10 of the master display device 100.