This study analyzed the effectiveness of Basic Life Support (BLS) training on disaster preparedness among health students. A quasi-experimental pretest–posttest control group design involved 60 students. The results showed significant differences between intervention and control groups in knowledge, skills, and attitudes (p=0.000). These findings indicate that BLS training effectively improves students’ disaster preparedness in cognitive, psychomotor, and affective domains and should be implemented continuously in higher education institutions.