Peer group support plays a crucial role in enhancing diabetic foot care. However, diabetic patients often exhibit suboptimal foot care behavior due to a lack of support. This study aimed to explore the correlation between peer group support and foot care practices in individuals with diabetes mellitus. Employing a cross-sectional design, the research focused on diabetes mellitus patients aged 40-55 years, and those with less than five years of diabetes history. A purposive sampling technique was utilized to select 64 participants. The research variables encompassed demographic factors, peer group dynamics, and diabetic foot care behavior. These were assessed through a modified questionnaire, verified for validity and reliability. Data analysis involved descriptive analysis and chi-square analysis. The findings revealed a prevalence of 79.7% for inadequate peer group support and 20.3% for robust support. In terms of diabetic foot care behavior, 56.3% exhibited poor practices, while only 17.2% demonstrated good foot care behavior. All variables displayed significance concerning the dependent variable, with a p-value < 0.003. This underscores the positive impact of peer group support on improving foot care behavior in diabetes mellitus patients. This study highlights the need for further research to delve into the effects of educational interventions and family involvement in enhancing diabetic foot care behavior.