The purpose of this study was to investigate the relationship between ego - resilience, family health, and adaptive flexibility of children through structural modeling and to identify mediating effects of adaptive flexibility in the relationship between ego - resilience and family health. In the study, 528 elementary school students were selected as random sampling. The results of the questionnaire survey showed that the children s perceived family health, ego - resilience, and adaptive flexibility were all significantly correlated. The mediation effects of adaptive flexibility was found to be mediating between the perceived family health and ego - resilience of children. The results of this study are summarized as follows. As a result the need for extended intervention of the family s health and adaptive flexibility for the improvement of the ego-resilience of the child. In addition, improvement of adaptability and adaptability through counseling and educational intervention were discussed, and home education programs linked parent education were discussed.