Children living in foster care group homes are more likely to have physical, mental, and social health problems due to parental abuse, neglect, and family breakdown. The purpose of the current study was to develop and apply the urban forest-based health promotion program on children living in group homes in Korea to investigate its effects on perceived health, psychological health, and connectedness to nature. Eight children (mean age = 12.13 [
SD
= 1.25] years) from three group homes participated in the study. The intervention was conducted individually for each group home once per week for 8 weeks. Quantitative and qualitative data were collected and analyzed. Participants showed significant improvement in restoration. Six themes were identified that reflect participants' experience and the effectiveness of the urban forest-based health promotion program. This program may be considered a possible intervention to promote children's psychosocial health and connectedness to nature. Continuous efforts are needed to further examine the program's effectiveness. [
Journal of Psychosocial Nursing and Mental Health Services, 58
(6), 18–29.]