The development of network technology and the popularization of smart phones make it possible for passengers to travel, through the taxi software platform to transfer their position and price. Taxi drivers display their prices, service levels and locations through the platform. According to the preference of both parties, a multi-objective co-pricing optimization algorithm based on preference is proposed, and the application of pricing optimization method is illustrated through an example. This model comprehensively balances the preferences of all parties, further promotes the co-operation of taxis, and reduces the waste of social resources. It eases the pressure of traffic congestion.