Provided are a display device and an operating method therefor. The display device include a user input interface configured to receive a signal from a remote control device, a wireless communication interface configured to receive image data from an external device and control data of the external device, a display configured to output a screen of the external device by using the received image data, and a controller configured to control the display to change a pointer display mode of the remote control device based on the control data of the external device received while outputting the screen of the external device.