It is an object of the present invention to provide a vehicle that can efficiently cool or heat a group of the components, in view of appropriate operating temperature ranges of respective components configuring a fuel cell power supply system, while realizing saving of a mounting space in the vehicle and cost of the vehicle. A vehicle 11 mounted with a fuel cell power supply system includes at least a fuel cell 1, an accumulating unit 12 including a capacitor 2 and a secondary battery 6 connected to the fuel cell 1, a motor 5 serving as a power source for the vehicle 11 to which output sections of the fuel cell 1 and the accumulating unit 12 are connected, and a PDU 4 provided between the output sections and the motor 5, wherein a component group of the power supply system including the fuel cell 1, the accumulating unit 12, and the PDU is arranged so as to be cooled by a cooling medium which flows inside the vehicle 11, in order from one having a smallest heating generation amount.