A vehicle behavior data recording control system is disclosed. The system comprises a vehicle abnormality detector for detecting a vehicle abnormality and a recorder for acquiring vehicle abnormality information from the vehicle abnormality detector. In response to occurrence of an unexpected behavior, the recorder determines whether or not a cause of the unexpected behavior is the vehicle abnormality. When the cause of the unexpected behavior is the vehicle abnormality, the recorder is prohibited from recording a behavior data relating to the unexpected behavior. When the cause of the unexpected behavior is not the vehicle abnormality, the recorder records the behavior data relating to the unexpected behavior in the memory as an unexpected behavior data.