The private business owner class along with the rapid development of the private economy in our country and become a relatively independent social stratum，the economic status of rising at the same time，political demands also increased obviously，has become the political landscape of a new power should not be ignored. Based on this，the author examines the political participation of private entrepreneur motivation，thinks private entrepreneurs to participate in politics is not a blind action，in order to obtain financial support，political security，political honor，social capital，etc. The author thinks that，need to actively promote the political participation of private entrepreneurs in the new period，this is to realize the benign economic development，improve the political participation mechanism，and speed up the process of democratic politics in our country，the objective request，also summarizes the current private entrepreneurs to participate in political channels to tie in with the management of the government，political identity construction behavior，indirect political participation behavior and non-institutionalized participation behavior. And put forward，the political participation of private entrepreneurs has emerged since the new century new features，their participation will more democracy，participatory way more diverse，widely participate in fields and participate in the structure to be more effective. Some unreasonable participation way，of course，the negative effect also not allow to ignore，these negative effects and mechanism of private entrepreneurs，political participation channels unblocked，not engage in imperfect，imperfect laws and political participation is directly related to misunderstanding. Therefore，broadening the channels of political participation，to set up the standard of the participation mechanism，perfect the legal system of political participation and attention to the political participation of small and medium-sized private entrepreneurs are actively promoting and guide the political participation of private business owner class ordering，legalization and expansion of the ought to be.