Three-dimensional display device and user interfacing method therefor

A three-dimensional display device and a user interfacing method therefor are disclosed. The three-dimensional display device according to one embodiment comprises: a display unit for displaying a three-dimensional virtual object; a user input signal generation unit for generating a user input signal by detecting a handling object for handling an operation of the three-dimensional virtual object in a three-dimensional space matched with the three-dimensional virtual object; and a control unit for controlling the operation of the three-dimensional virtual object according to the user input signal.