The present invention is to provide an image display device capable of performing various functions in association with a mobile terminal such as a smartphone or the like, and a method for controlling the same. The image display device includes a display unit, an audio output unit, a wireless communication module for a communication between a mobile terminal and a remote controller, a controller that perform control to establish a first communication connection with the mobile terminal in response to a first communication connection request received through the wireless communication module from the mobile terminal playing first content, receive the first content from the mobile terminal through a first communication and output the first content through the audio output unit, and display a user interface for controlling playback of the first content of the mobile terminal on the display unit.