Purpose: The purpose of this study was to understand the parenting stress and health promotion behavior of working women, and to investigate the mediating effect of supporting resources. Supporting resources were set as social support of spouse and community, and institutional support of the organization to which the subject belongs based on previous studies and an ecological system theory. Methods: The participants were composed of 214 female workers residing in 17 cities and provinces nationwide and having at least one child aged 1~12 years old. Data were collected online from February 19 to February 28, 2021. The collected data were analyzed using the SPSS 20.0 program to understand the level and correlation of the general characteristics and major variables, and to test the mediating effect, after controlling the variables significantly from univariate analysis, step regression analysis was performed. Results: Among the supporting resources, the mediating effect of social support of spouse and community was statistically significant. Conclusion These findings suggest that it is necessary to seek ways to increase the social support of working women's spouses and people around them in order to increase the health promotion behavior of working women.