The study was conducted on the causes and consequences of vote buying on democracy sustainability in Adamawa State, Nigeria, employing a survey research design. It focused on Ganye, Yola South, and Mubi South regions with a total population of 764,000. Using a stratified random sampling technique, 400 stakeholders including election candidates, political party members, security agents, and voters were selected for data collection. Primary data was gathered through structured questionnaires, complemented by secondary sources. The study revealed demographic diversity across gender, age, education, and occupation among respondents, underscoring the need for inclusive policies. It found that vote buying is influenced by socioeconomic challenges, cultural norms, and institutional weaknesses, adversely affecting electoral integrity and public trust in democratic processes. Analysis employed descriptive techniques and regression analysis to test hypotheses and explore variable relationships. Recommendations include civic education, enhanced election monitoring, and stronger enforcement to mitigate vote buying. The study calls on government and NGOs to implement inclusive policies addressing root causes, reinforcing democratic governance. Future research should investigate into demographic dynamics and systemic implications of vote buying in Adamawa State, contributing to comprehensive electoral reforms. This study illuminates complexities of vote buying in Adamawa State, advocating for reforms to uphold electoral integrity and democratic governance.