Introduction: The risky behavior of taxi drivers is an important cause of death and it’s the second cause of death and ninth cause of early death and disability in Iran. This study aimed to investigate factors affecting accident and risky behavior of taxi drivers in Ahvaz, Iran in 2013 .
 Materials & Methods: This is a cross sectional descriptive analytical study. The samples were 400 cases of Ahvaz taxi drivers who randomly referred to the taxi driving organization. Data was collected by questionnaire form. The pilot study was based on 50 accidents of taxi. To obtain the reliability of the questionnaire, Cronbach’s alpha was utilized and data were analyzed using (SPSS) software version 19
 Findings: Results showed that among the five important factors of risky driving behavior of taxi drivers, individual and personal factor 26/228 had the highest impact on risky behavior of taxi drivers. Also, other factors like the effect of other people and society were the second and third cause of accident with respective degrees of 10.423 and 7.578. In the first factor (individual factors) pleasure and excitement of risky behavior, convince transport and producing occupation had the first to third ranks.
Discussion & conclusion: Many causes have been reported as for the dangerous behavior of driving but this research paid attention to those factors which were more important and were approved by taxi drivers. The most important factor in risky behavior is the individual factor. The influence of others and social factors had the second place. So, authorities should plan awareness raising programs and pay attention to the mentioned shortcomings and attempt to take a helpful strike for reforming them.