A method and apparatus for unlocking a mobile terminal can immediately execute a specific application at a lock screen. The method of unlocking a mobile terminal includes: outputting a lock screen including an icon area in which at least one icon representing an application is displayed and a pattern area that receives a pattern gesture input for unlocking; sensing a touch signal that moves a specific icon displayed in the icon area to the pattern area; determining whether a first pattern gesture for unlocking is input to the pattern area without release of the touch signal; determining, if a first pattern gesture is input, whether the input first pattern gesture corresponds with a preset unlock pattern gesture; and unlocking, if the input first pattern gesture corresponds with a preset unlock pattern gesture, the mobile terminal and executing an application corresponding to the specific icon.