Automobile high-voltage power system

The utility model provides an automobile high-voltage power system, which comprises a battery pack, a first relay, an electric device and a car charger. The battery pack, the first relay and the electric device form a loop. The power system is characterized by further comprising a second relay. The second relay after being connected with the car charger is in parallel connection with the loop formed by the first relay and the electric device. With an independent charging circuit, the power system avoids over large current flowing into the relays at the moment of powering on of the car charger, guarantees safety of the relays and the electric device, and realizes safety powering on of the car charger.