Storage management method and device of automobile data recorder

The invention relates to the technical field of automobile electronics, and provides a storage management method and device of an automobile data recorder. The method comprises the following steps: receiving record information of an automobile data recorder, marking information measurement for the record information according to an automobile condition corresponding to the record information, and jointly writing the record information and the information measurement into storage equipment; monitoring a storage state of the storage device; judging whether the available storage space is smaller than a first threshold value; if yes, the record information marked with the low information amount is sequentially deleted from all the record information corresponding to the occupied storage space according to the time sequence from far to near, so that the available storage space is released. According to the method, all the record information is directly stored in the storage device by marking the information amount