A vehicle control device includes an input unit configured to receive plural requests for a physical amount to be controlled in a vehicle; a judgment unit configured to judge whether or not a degree of priority of each of the received requests is high: a second mediation unit configured to, when there are plural requests whose degrees of priority are judged not to be high, mediate these plural requests to determine a control target value (Rm); a transfer unit configured to, when there is a request whose degree of priority is judged to be high, transfer this request as the control target value; and an output unit configured to output the control target value transferred from the transfer unit or determined by the second mediation unit to a VDC.