The use of unmanned aerial vehicles (UAVs) in military and civilian areas is increasing day by day. Increased usage reveals risks related to accidents and crimes. Human factors are among the most important causes of accidents and crimes in aviation. Understanding the impact of these factors on unmanned aerial vehicles (UAV) operations is vital to prevent accidents and crimes. In this study, the literature on human factors in unmanned aerial vehicles is systematically reviewed and classified. As a result of the classification, it is aimed to understand which subjects are deficient or inadequate. In this way, it is tried to make recommendations for future research.