Objective:To explore the relationship between family support and life satisfaction in left-behind children, and examine the mediating roles of hope and gratitude in this relationship.Methods:Perceived Social Support Scale, Children's Hope Scale, Gratitude Questionnaire-5 and Brief Multidimensional Students'Life Satisfaction Scale were applied to 842 left-behind children.Results:Correlation analysis showed that Left-behind Children's family support, hope, gratitude and life satisfaction were significantly and positively correlated with each othe...