1. An apparatus for voice command recognition based on a combination of dialog models, the apparatus comprising: a command intention determining unit configured to correct an error in recognizing a voice command of a user through a command intention probability distribution of a vocally commanded intention corresponding to the voice command of a user, and configured to determine a final command intention of the voice command; and an application processing unit configured to check whether the final command intention determined by the command intention determining unit comprises all input factors for execution of an application, to acquire information related to one or more missing input factors from the user, and to generate an execution signal of the application corresponding to the final command intention.