Objective: This study was conducted to examine the mediating effects of play teaching efficacy in the relationship between the organizational health of teacherworkplaces and the creative personality of the teachers. Methods: The Pearson product-moment correlation analysis and one-way ANOVA were conducted for data analysis using SPSS 25.0. For mediatinganalysis, Baron & Kenny’s (1986) multiple regression analysis using SPSS 25.0 and the Sobel test were also implemented. Results: There were significant differences in the organizational health of the workplaces according to age, years of working experience, type of workplace, and daily working hours. For play teaching efficacy, there were significant differences according to age, education level, years of working experience, type of workplace,and daily working hours of the teacher. On the other hand, significant differences were found in terms of age and education level in relation to the teacher having a creative personality. Play teaching efficacy was found to have a full mediation effect on the relationship between the organizational health of the workplace andthe creative personality of the teacher. Conclusion/Implications: The organizational health of the workplace and play teaching efficacy should be improved in order to enhance the creative personality of teachers in early childhood education.