The invention discloses a control method and a control device for a compressor as well as the compressor. The control method comprises the following steps of: obtaining an outlet gas saturation temperature value of the compressor; comparing the outlet gas saturation temperature value with an outlet gas saturation temperature threshold value; and controlling to increase load of the compressor whilejudging that the outlet gas saturation temperature value is higher than the outlet gas saturation temperature threshold value. In case of not increasing cost of the compressor, the method effectivelycontrols an operation state of the compressor, and can avoid a phenomenon that the compressor is damaged by a too high temperature of a motor winding of the compressor.