Provided is a system and method for providing a real-time streaming service between terminals by using a wired/wireless communication channel. The system for providing a real-time streaming service between terminals includes a server terminal for parsing and separately storing header information of media data, decoding and outputting each of video and audio data included in the media data, and providing header information and the media data being currently reproduced in response to a sharing request for the media data; and a client terminal for generating a decoder by means of the header information received from the server terminal according to the sharing request for the media data being reproduced in the server terminal, decoding the media data provided from the server terminal by means of the generated decoder, and outputting the media data.