Objective To analyze the status of family hardiness and its influencing factors in children with refractory nephrotic syndrome (RNS).Methods A cross-sectional study was carried out in the family members of 120 children patients with RNS admitted to our hospital from January 2013 to February 2016.The general information questionnaire,family hardiness scale (FHI),general self-efficacy scale (GSES),self-rating anxiety scale (SAS),self-rating depression scale (SDS) and simplified coping style questionnaire (SCSQ) were used for investigation and evaluation.The status of family hardiness of children patients with RNS was summarized and its influencing factors were analyzed.Results (1)Among the scores of family hardiness in patients of children with RNS,the score of responsibility dimension was the highest,followed by the score of control dimension.The self-efficacy scores of the family members were in the middle level,the scores of anxiety and depression were in mild level,and the score of positive coping was relatively higher.(2)The univariate analysis showed that the treatment time,education level of family members,place of residence,family per capita monthly income and medical payment method were the related factors influencing the family hardiness score (P<0.05);the Pearson correlation analysis showed that self-efficacy score and positive coping score were positively correlated with the family hardiness score (r=0.425,P=0.011;r=0.536,P=0.002),while the anxiety and depression scores were negatively correlated with the family hardiness score (r=-0.581,P=0.001;r=-0.671,P=0.000).The multivariate regression analysis showed that the family per capita monthly income,self-efficacy score,anxiety score,depression score and positive coping were the independent factors influencing the family hardiness.Conclusion The family hardiness of patients of children with RNS is in the middle and upper level.The family income,self-efficacy of family members,positive coping style,anxiety and depression emotions are related factors influencing family hardiness.