Objective: The purpose of this study was to examine the relationships between child care teachers’ mindfulness, burnout, and sensitivity. Also, the effects of child care teachers’ mindfulness on teacher sensitivity, including the mediating effects of burnout, were investigated. Methods: A total of 263 child care teachers who work in Seoul, Gyeonggi and Incheon participated in this study. Data were analyzed by correlations and regressions using SPSS 21.0. Results: First, there were significant correlations between child care teachers mindfulness, burnout and teacher sensitivity. Second, the relationship between mindfulness and teacher sensitivity was partially mediated by burnout. To be specific, mindfulness not only had a direct effect on teacher sensitivity, but also had an indirect effect on teacher sensitivity through burnout. Among the three dimensions of burnout, the decrease of personal accomplishments had the biggest significant mediation effect on the relationship between mindfulness and teacher sensitivity. Conclusion/Implications: In conclusion, this study highlights the importance of mindfulness in reducing burnout and enhancing teacher sensitivity toward children. Also, this research has implications for future research regarding the mindfulness of child care teachers and offers a foundation for the development of mindfulness training programs for child care teachers.