Abstract: A driving event recording method and system for non-image-based car accident cause determination are disclosed. The system includes an external-event determination unit, an internal-driving-behavior-event determination unit, and a processor electrically connected to both determination units. The method is carried out as follows. The external-event determination unit generates information about an external event, and at the same time the internal-driving-behavior-event determination unit generates information about an internal driving behavior event. The processor receives the external-event information and the internal-driving-behavior-event information and uploads both pieces of information to a cloud storage space in a text or program code format for storage in a blockchain.