1. A voice control method for a mobile terminal device, wherein the mobile terminal device has a first application, the method comprising: the first application providing at least one operating parameter for a speech software development module; the mobile terminal device receiving a voice signal and sending the voice signal to the speech software development module, wherein the speech software development module parses the voice signal to obtain a voice recognition result, and when the voice recognition result matches one of the operating parameters provided by the first application, the speech software development module provides an operating signal according to the voice recognition result; and the first application receiving the operating signal.