Abstract: The process of povertyalleviation targeting is a game process in which the poor households compete and coordinate with each other continuously.The result of behavior evolution depends on the contrast relationship between the coordinative benefit and cost of the two types of poor households.Only when the coordinative benefit exceeds cost should the game turn to coordinative behaviors.The coordinative benefit and cost,with each share coefficient,are the key factors influencing the evolution of poor households' behaviors.Fiscal subsidies may change the poor households' strategy,and there is a best subsidy point at which all poor households choose coordinative behaviors.Proper measures should be taken so that the game should evolve in a coordinative way.

Key words: poverty alleviation targeting, poor households' behaviors, coordination, competition, evolutionary game