Background and objective: This study sought to develop a horticultural therapy program (HTP) based on cognitive- behavioral emotion regulation training (CBERT) to improve the emotional intelligence, emotion regulation, and resilience of children eligible for priority support for educational welfare, and investigate its effects.Methods: To conduct this study, an HTP based on CBERT was developed using indoor horticulture activities. The program was conducted on 42 children (21 in the experimental group and 21 in the control group) in grades 3 to 4 who were eligible for priority support for educational welfareand were attending D elementary school in Incheon metropolitan city. Emotional intelligence, emotion regulation, and resilience were measured using self-report questionnaires before and after participating in the HTP.Results: The study found that the emotional intelligence (p < .01), emotion regulation (p < .01), and resilience (p <.01) of the children who participated in the experiment were significantly increased.Conclusion: Through this study, it was confirmed that an HTP based on appropriate CBERT has a positive effect on improving children's emotional intelligence, emotion regulation ability, and resilience. In future research, it will be necessary to expand its application to all grades and general children as well as children eligible for priority support for educational welfare.