Abstract: To help negotiation Agent to select its best actions and reach its final goal,a reinforcement learning ncgotialion strategy based on I3ayesian classification was proposed. In the middle of negotiation process, negotiation Agent makes the best use of the opponent's negotiation history to make a decision of the opponent's type based on Bayesian classification,dynamically adjust the negotiation Agent's belief of opponent in time,quicken the negotiation result convergence and reach the better negotiation result. Finally, the algorithm was proved to be effective and practical by experiment

Key words: Bayesian classification, Reinforcement learning, Negotiation strategy, Negotiation history