The invention relates to an air-conditioning technique, in particular to a protection structure for air-conditioner repair valves, which solves the problem that the air-conditioner repair valves convexly arranged on outdoor-unit valve plates are easy to suffer collision, external-force impact, deformation and damage during transportation. The structure with the technical scheme comprises a valve plate and a repair valve, wherein the valve plate is arranged on an outdoor-unit chassis; a bracket of the repair valve is in threaded connection with the valve plate; two ends of the repair valve areserially connected with a refrigerant inlet of an outdoor heat exchanger; and in order to protect the repair valve from external-force impact, the valve plate provided with the repair valve is also inthreaded connection with a valve cover covering a repair valve body. The valve cover is in a trapezoid structure with round edges and corners; the upper end of the valve cover is provided with a through hole fixed with the valve plate through a screw, as well as a countersink groove; the lower end of the valve cover is provided with a fit edge used to be fixed with the valve plate; the fit edge is provided with three screw through holes fixing the valve cover with the valve plate; the valve cover is in fixed threaded connection with the valve plate through an upper screw through hole and a lower screw through hole; and in order to allow a refrigerant pipe connected with the repair valve to get into and out of the valve cover, the periphery of the valve cover is provided with a U-shaped through slot allowing the refrigerant pipe to get in and out.