Provided is an on-vehicle communication device that includes a vehicle information acquiring unit that acquires vehicle speed information on a vehicle capable of performing self-driving and/or current location information on the vehicle. The on-vehicle communication device also includes a self-driving level acquiring unit that acquires self-driving level information indicating a self-driving level of the vehicle. Further, the on-vehicle communication device includes a controller that determines whether to enable or disable a connection to a high-confidential communication channel based on the self-driving level information and the vehicle speed information and/or the current location information.