Abstract: Constructing a trust mechanism is very significant to benefit users in P2P network and verify validity of resource and service. Basic notions in P2P trust management was clarified in this paper and system constitution with key issues was analyzed in detail,which was followed by the introdcution of typical P2P trust management systems and the discussion about combination of P2P trust management and other subjects. In the end future research such as uniform framework and evaluation standard was expected.

Key words: P2P,Trust management,Framework,Standard