There is provided a vehicle control device that allows high-speed diagnosis of a current breaker while assuring the accuracy of the current flowing to a load during the operation of the load. A smoothing capacitor (8) is connected in parallel to linear solenoid valves (13a and 13b). A current breaker (3a) and a reverse connection protector (4a) are connected in series from a battery (2) to a first connection point (P1) between the linear solenoid valves (13a and 13b) and the smoothing capacitor (8). A discharge unit (DU) is connected to a second connection point (P2) between the breaker (3a) and the reverse connection protector (4a) to discharge electric charge from the second connection point (P2).