The invention belongs to the technical field of devices for outdoor barbecue through solar energy, and particularly relates to a solar barbecue device. Light gathering plates are arranged on the foursides of a solar cell panel, and sunlight irradiated on the periphery of the solar cell panel can be gathered on the solar cell panel through the light gathering plates, so that the power generation capacity is improved, and the power generation power is increased. The bottoms of supporting legs are provided with buckle brake wheels capable of being switched up and down, so that the device is convenient to push and fix. A handle is arranged at the top of a support so that when the brake wheels cannot be used on an uneven road surface, the device can be conveniently moved by a user; the supporting legs are provided with an oil drainage screen, a detachable stainless steel plate and a rotationally connected heat preservation cover so that excessive oil or ingredients on food can be reduced,and the roasted food can be kept warm and stored, people can share the food after enough food is accumulated; the stainless steel plate can collect oil and ingredients dropping during food oil drainage, environment pollution is avoided, and the stainless steel plate is convenient to clean through rotational connection.