Introduction: Every year thousands of people in Iran loss their lives in traffic accidents. Any those accidents, motorcycle accidents are fatal. Safety attitude is a predictor of risky behavior. The purpose of this study was to investigate the relationship between personality, attitudes to safety and risky behaviors.

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Material and Method: In this study 254 motorcycle drivers were randomly selected in Tehran city, and they were asked to complete personality, the attitude to safety and risky behaviors questionnaire.

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Result: A statistically significant correlation was found between different domains of personality (fear, anger, Emotional styles, altruism, anomaly) and attitude to safety (traffic flow in obedience to the law, driving speed, driving excitement), (P = 0/001). Also between personality and attitude to safety the relationship was statistically significant (p = 0/001).

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Conclusion: Attitude to safety is a predictor for risky behavior. Personality also the impact indirectly on the attitude to safety have and risky behaviors.