Applying game theory,by the strength of different property insurance companies of consisting of the Price-fixing cartel in large insurance companies and small insurance companies between game and pricing strategy analysis.research shows that: in the Price-fixing cartel to determine the monopoly high price and the monopoly low price,small insurance companies should take a betrayal of strategy is best;large insurance companies by controlling the Price-fixing cartel should take the monopoly low price and cooperative strategy,which would be conducive to price Alliance stable,is also advantageous to the insurance company more time to maintain market dominance.