A braking/driving force control device for changing output torque by controlling torque or a rotation number of a power source includes a unit for setting a plurality of ranges by a plurality of parameters including an output rotation number, a range judging unit that judges that a range corresponds to any of the plurality of ranges based on the parameter while driving, and a control unit that controls the torque or the rotation number of the power source based on a driving environment and a range judgment result by the range judging unit. This enables driving regulation control by, for example, a driving environment other than intentional shifting operation by a driver, in a vehicle of a type without a transmission.