A mobile terminal and a photograph deletion method thereof are disclosed. The method comprises: pre-storing in the mobile terminal a preset touch gesture used for deleting a picture from a photography interface during photography, and mapping the preset touch gesture to a deletion command; receiving a user's touchscreen command to determine whether the user's touch gesture matches the preset touch gesture when the photography interface of the mobile terminal requires deletion of a picture; if yes, determining a deletion target according to action points of the touch gesture; and moving deletion target into a recycling bin. The captured picture is rapidly deleted from the photography interface through a simple touchscreen gesture without exiting the camera application program and with no need to manually switch an operation interface.