Based on the CGSS data of 2005,this paper distinguish social trust into three different dimensions by factor analysis——strong social contact,common social contact and weak social contact.The purpose of this paper is to study the impact of marketization,individual capital and social interaction on social trust in transitional China by structural equation model.The results shows that individual capital has no significant effect on those three kind of trust,and it indicates that trust is not a problem of individual level but of societal level.Ma...