The invention discloses a mobile terminal, comprising a display unit configured to display an image to be displayed in three-dimensional space beyond the mobile terminal, a determination module configured to determine an instruction input by a user through the displayed image via spatial position detection, and a processing module configured to execute an operation corresponding to the determined instruction. In the invention, both the display of the image in the three-dimensional space beyond the mobile terminal and the spatial position detection are beneficial to execute the operation corresponding to the instruction from the user accurately, so that the user can observe the image conveniently, the limitation of a screen size is eliminated, the instruction from the user can be judged and executed accurately, and user experience is improved.