Objective: This study explored the effect of childcare teacher s playfulness on burnout through ego-resiliency. Methods: The participants of this study were 265 childcare teachers working at childcare centers. Data was collected through questionnaire on teacher’s palyfulness, ego-resiliency and burnout were analyzed with descriptive statistics and Pearson s correlation analysis using AMOS 10.0 and SPSS 21.0. The path included in the study model was verified by Structural Equation Modeling(SEM) and for the analysis of the mediating effect, Bootstrapping was used. Results: First, childcare teachers’ playfulness had a negative influence on burnout. Second, childcare teachers’ ego-resiliency had a negative influence on burnout. Third, childcare teachers’ playfulness had a positive influence on ego-resiliency. Fourth, childcare teachers’ playfulness had an indirect effect on burnout through ego-resiliency. The effect of childcare teachers’ playfulness on their burnout was completely mediated by ego-resiliency. Conclusion/Implications: When developing a program to intervene in the burnout of childcare teachers, there needs to be more concern about ego-resiliency than playfulness.