In a method in which vehicle-mounted devices on vehicles read configuration data set on a computer using a memory card, when the computer is installed remotely from the vehicles, it is inefficient to have to go back and forth between the vehicles and the place where the computer is installed every time the configuration is changed.A method for reflecting configuration values of a drive recorder according to the present invention has the steps of: allowing a computer to read configuration values at least one of which are changed on a vehicle-mounted device side in a plurality of configuration data items in configuration data of a drive recorder; indicating side by side the configuration values on the vehicle-mounted device side and configuration values on a center side included in master data stored in the computer on a display device connected to the computer; and comparing the configuration values on the vehicle-mounted device side with the configuration values on the center side, wherein, when the configuration value on the vehicle-mounted device side set in the drive recorder and the configuration value in the master data are different from each other in any data item, at least one of the configuration value on the vehicle-mounted device side and the configuration value on the center side are indicated differently from a case in which the configuration value on the vehicle-mounted device side and the configuration value on the center side are identical to each other in any data item.