The invention discloses a mobile terminal dialing device and method. The device comprises a first acquisition module for obtaining the current application type of an application displayed and runned by a mobile terminal at present when the target contacts obtained based on the voice information inputted by a user are more than one contact, a second acquisition module used for obtaining the identity type corresponding to a current application type according to the corresponding relation between an application type and a prestored identity type, a comparison module which is used for comparing the identity type and the identity information of each target contact, and taking a target contact whose identity information is matched with the identity type as a contact to be dialed, and a dialing module for controlling the mobile terminal to dial according to the contact to be dailed. According to the mobile terminal dialing device and method, the problem of wrong dialing caused by a condition that the mobile terminal can not confirm a contact which the user emits voice to dial is avoided or alleviated.