A method of converting digital broadcast contents and digital broadcast terminal having a function of the same are disclosed, by which music in compliance with a user's taste can be inserted as a background music by separating an audio signal of digital broadcast contents and by which a text can be displayed as a caption on a screen of the terminal in a manner of converting a voice recognized from a separated audio signal to the text. In converting digital broadcast contents including a video signal and an audio signal received via a digital broadcast network in a digital broadcast terminal, the present invention includes a step (a) of extracting the audio signal and the video signal for a specific section of the digital broadcast contents and a step (b) of synthesizing the extracted video signal with prescribed audio data.