As an important part in network education system, Q&A system has become the research hotspot in the computer field. This article firstly analyzes the status and existing problems of the Q&A system in colleges and universities under the traditional education pattern. Then, according to the requirements of network education development, it proposes the design scheme of realtime Q&A system based on P2P. This system implements resources sharing of a variety of information, making teachers and students communicate“face to face”