.Social vices are unacceptable behaviours that can negatively affect individuals, institutions, and society, often contributing to student delinquency, indiscipline, academic misconduct, and other forms of deviant behaviour. This study examined the causes of social vices and the measures for controlling them among undergraduate students of Prince Abubakar Audu University, Anyigba, Kogi State. The study adopted a descriptive survey research design, with data collected through a structured questionnaire from 376 respondents selected using the Yamane (1967) formula. Data were analyzed using the Statistical Package for the Social Sciences (SPSS), version 20.0. The findings revealed that peer pressure was identified by 105 (35.0%) respondents as a major cause of social vices and student delinquency, followed by poor parenting 55 (18.3%), social media 50 (16.7%), drug influence 20 (6.7%), unemployment 47 (15.7%), and societal factors 23 (7.7%). The findings further showed that proper family socialization was identified by 76 (25.3%) respondents as the most important measure for controlling social vices, followed by disqualification from examinations 71 (23.7%), rustication/expulsion 66 (22.0%), student orientation 56 (18.6%), and school-based counselling programmes 31 (10.3%). These findings indicate that social vices are closely associated with forms of student delinquency, particularly where negative peer influence, weak parental guidance, drug use, and adverse social environments encourage deviant behaviour. The study concludes that reducing student delinquency requires a collaborative approach involving parents, students, educational institutions, and government through effective socialization, counselling, orientation, discipline, and preventive interventions.