A multifunction simultaneous interpretation device includes an audio input and recognition module for receiving input speech of a first language, recognizing same, and converting the input speech of the first language into input speech signals of the first language; an interpretation module electrically connected to the audio input and recognition module and configured to receive the input speech signals of the first language, interpret and convert same into speech signals of a second language different from the first language, and make the speech signals of the second language as output; an output module electrically connected to the interpretation module and configured to receive the speech signals of the second language from the interpretation module and output a voice representing the speech signals of the second language; and a wireless transceiver electrically connected to the interpretation module and configured for wireless signal transmission to a mobile phone.