The invention relates to a solar device for car radiating and refrigerating and a car. The solar device comprises a solar panel, a storage battery, a circuit monitoring module, a refrigerating device,a ventilation and radiating device and a ventilation pipeline and is characterized in that the refrigerating device is communicated with the ventilation and radiating device through the ventilation pipeline, and the solar panel, the refrigerating device and the ventilation and radiating device are connected with the storage battery through the circuit monitoring module; the refrigerating device comprises a semiconductor refrigerating plate, a cold conduction block, a cold-end fan and a radiating device; the ventilation and radiating device comprises a first fan, a first fan radiating inlet, afirst fan radiating outlet, a radiating port, a free ventilation port and an outlet. The solar device has the advantages that the solar device can store sufficient power by the solar panel and the storage battery; in addition, by the coordination of the refrigerating device and the ventilation and radiating device, cooling and ventilation of the internal space of the car can be achieved, and a good cooling effect is achieved; meanwhile, the consumption of other resources is avoided, and the device is clean, pollution-free and simple.