This study aims to provide a descriptive analysis of preventive behaviors toward diabetes mellitus (DM) within community contexts based on findings from recent literature. Using a qualitative descriptive design through a library-based study, data were collected from academic journals, systematic reviews, and relevant official publications published between 2015 and 2025. The analysis employed thematic identification, data reduction, conceptual categorization, and inductive interpretation to synthesize patterns of community-based diabetes prevention practices. The results indicate that education, lifestyle modification, family involvement, and culturally adapted interventions are the most effective components in fostering preventive behaviors. Moreover, community participation and social support significantly enhance adherence and behavioral consistency, while the integration of digital technologies (mHealth) expands accessibility and engagement. The findings reaffirm the relevance of behavioral frameworks such as the Health Belief Model and Theory of Planned Behavior, emphasizing that sustainable prevention depends on the interaction between personal motivation and sociocultural context. This study contributes to a deeper understanding of how community-driven strategies can mitigate diabetes risks and highlights the importance of culturally sensitive health promotion. Future research should adopt triangulation methods and longitudinal analysis to evaluate long-term impacts and expand insights into the social determinants influencing preventive behavior.