Abstract: Political trust is an interaction relation between citizen and government which concerns with specific relation of citizenship and political value.There are many factors influencing political trust that can be divided into three levels such as:personal level,social level and governmental level.This article consists of three parts.The author explores the definition,connotation and possibility of political trust in the first part,then analyses the impact factors of political trust from individual,social and political levels respectively.In the last part,the author discusses the current condition of political trust in China.