In this study, we intend to survey the relation between accommodation attitude of emotional expression by mom from multi-culture family and general family, children’s peer relation and self-esteem. T-test, one-way ANOVA, simple regression analysis and hierarchical regression analysis were conducted for the data analysis, and result of this study is as follows. First, it had shown a meaningful difference depending on division of multi-culture family and general family. Second, accommodation attitude of emotional expression by mom from multi-culture family and general family had explained children’s peer relation and self-esteem statistically meaningfully. Finally, in case of multi-culture family, correlation between accommodation attitude of emotional expression by mom for the children’s peer relation and children’s self-esteem was revealed to be meaningful. Based on these results, implications and limitations of this study were discussed.