It is possible to provide a vehicle and an in-vehicle communication control device capable of performing control having preferable response even under an environment where notch attenuation and various noises are superposed in a wired communication by using a battery line. The in-vehicle communication control device includes: a controller for inputting operation amounts detected by respective sensors arranged in a plurality of operation devices arranged in a vehicle chamber for detecting operation amounts of the operation devices; a communication device connected to the controller and the battery line for outputting a control signal as a carrier of different frequency for each type of the operation devices to the battery line; a second communication device connected to the battery line andpassing the carrier of the frequency band of each of the operation devices; and a second controller connected to the second communication device and controlling the control device corresponding to the operation devices.