Abstract: The reliability of P2P multicast performance can't be ensured when facing non-cooperation stategies and ma- licious behaviours of P2P nodes. The market model based framework of P2P multicast was proposed, which uses second- price auction for network resource allocation. The stategies and payoff matrixes of various multicast nodes were ana- lyzed,as well as the conditions of stategy adjustment. Then the incentive mechanisms were designed for multicast nodes. Theoretical analysis and simulation results demonstrate its effectiveness.

Key words: Peer-to-pecr network, Multicast, Second-price auction, Incentive mechanism