Abstract: A multi-host touch control display device is to be connected to a plurality of host devices for touch controlling the host devices, and includes a control unit, a touch screen unit and a switch unit. The control unit provides a switch control signal. The touch screen unit is for generating a touch control signal according to a touch event thereon. The switch unit is coupled electrically to the control unit for receiving the switch control signal therefrom, is further coupled electrically to the touch screen unit, and is to be coupled electrically to the host devices. The switch unit is operable to enable transmission between the touch screen unit and a selected one of the host devices according to the switch control signal received from the control unit such that the touch screen unit is able to transmit the touch control signal generated thereby to the selected one of the host devices.