The application relates to a cooking equipment fault processing control method, device and system and an electric cooker. An environment temperature of a display device of cooking equipment is obtained, wherein the environment temperature is in direct proportion to the thermal stress of a top heating device of the cooking equipment; the environment temperature is compared with a preset temperaturerange to obtain a comparison result; and when the comparison result represents that the cooking equipment fails to work, a control signal is outputted according to the comparison result and a presetcomparison result-fault processing scheme corresponding relation and the control signal is used for controlling the electric stress of a display device, so that the fault of the cooking equipment is eliminated. Because of control of the electrical stress on the display device of the cooking equipment, the influence caused by the increase of the thermal stress is reduced, the service life of the device is prolonged to the greatest extent, and the reliability of the display device is enhanced.