As a special role of women,stepmother is always trapped in an awkward situation in manipulating with relationships among family members.People have mixed feelings towards stepmothers.The negative stereotype of an evil stepmother has long been recognized and accepted.As remarriage gradually becomes a common phenomenon in Mainland China,more and more stepmothers emerge.This paper intends to explore the contemporary types,identity and social cognition of stepmothers systematically based on qualitative and quantitative analysis. There are 245 cases used for analysis,among which 185 were collected by students who attended transformation of social attitudes towards marriage and family and the improvement of public cognition,etc.However,due to the sluggishness of social-cultural change,the slowness of the transformation of social attitudes and the separation of biological motherhood with social motherhood,the destigmatization of stepmothers still has a long way to go.