A simultaneous interpretation system includes earphones for inputting and outputting speech, and a portable terminal for receiving the original speech voice signal to be translated output from the first earphone.

The portable terminal outputs the interpreted voice voice signal based on the original language voice voice signal that has been interpreted into a different language to the second earphone.
The portable terminal performs translation or accesses the translation server to provide the translated voice voice signal to the second earphone. Therefore, through the medium of a single portable terminal, the short-distance communication between users is used for simultaneous interpretation, thereby realizing more efficient and unrestricted dialogue
And it is convenient to use and easy to operate, and it will not be interfered by other signals in the process of use.