Turkey is one of the countries that experienced frequent disasters and emergencies due to its geographical location and structural features. In such extraordinary situations, AFAD and Firefighters, who work in disasters and emergencies, intervene to restore the people, living and inanimate beings and order. Employees are required to have a culture of safety in such challenging events where dangers and risks are high. With the security culture and conscious work of these teams, whose primary task is to save lives, both the welfare of the society will be restored and the health and safety of these employees will always be provided. In this study, the effect of Occupational Safety Supervisions (OSS) on Occupational Safety Culture (OSC) for AFAD and firefighters working in Çanakkale was investigated. The universe of the research is the center of Çanakkale; the sample is 60 people, including AFAD and Firefighter field workers. The research questionnaire was applied face to face and the data were analyzed with statistical package program. As a result of the statistical evaluations of this field study, while statistically significant relationships were determined between the performance of the OSS in these institutions and the Occupational Safety Training (OST), the Occupational Safety Awareness and Competence (OSAC), which are the OSC assessment scales, no significant relationships were detected between the performance of the OSS in these institutions and Occupational Safety Communication (OSCOM) and Management Commitment (MC), which are the OSC assessment scales.