The invention discloses a nuclear power car. People cannot leave a car which serves as a traffic vehicle in life. But the car utilizes diesel oil and gasoline as fuel, thereby causing environment pollution. The nuclear power car according to the invention utilizes a graphene battery, a lithium battery or a hot nuclear battery as a power supply. When filling-to-full on ground is realized, power generation, charging and power consumption can be performed singly or between each other. The nuclear power car has advantages of environment-friendly and energy-saving performance, effective petroleum energy saving, high power, long driving distance, high speed, high safety and high convenience. The nuclear power car can be produced in different types, such as passenger bus, carriage, lorry, military vehicle, police car, firefighting truck, panzer, tank and various war wagons. When a war or an accident occurs, fire hazards, explosion and casualty are reduced. Military use and civil use are realized. A car structure is changed. The history of using oil for fuel engines of cars in the world is changed. The nuclear power car will change hundreds of millions and even billions of cars. When powersupply exists, many things can be realized. No tail gas of the nuclear power car is obtained.