To provide a vehicle condition recording system or the like capable of storing vehicle information data transmitted by another ECU until an ECU storing vehicle information data is started to operate.

This vehicle condition recording system 100 for recording vehicle information data in a first vehicle information data storing means 17 comprises a detecting means 22 for detecting that the first vehicle information data storing means 17 can store vehicle information data, a second vehicle information data storing means 16 for storing the vehicle information data during a period ranging from a turning-on time of a power supply of the vehicle to a time in which the first vehicle information data storing means can store the vehicle information data, a transferring means 23 for transferring the vehicle information data stored in the second vehicle information data storing means during a period ranging from the turning-on time of the power supply of the vehicle to the time when the first vehicle information data storing means goes into the state capable of storing the vehicle information data to the first vehicle information data storing means, and a recording means 25 for writing the transferred vehicle information data to the first vehicle information data storing means.