The utility model discloses an artifical icing climatic test room refrigerating system of extra-high voltage for artifical icing experiment is lowered the temperature to electrical equipment, arranges a plurality of vertical ascending wind channels at the trial zone of laboratory periphery, the top of trial zone is equipped with the static pressure layer, rise the wind channel the top with static pressure layer intercommunication, the static pressure layer communicates through the air supply orifice plate with the trial zone top, the return air inlet intercommunication is passed through with the bottom in the wind channel of rising in the trial zone bottom, be equipped with the fan of refrigerator coil pipe and court's up-draught in the ascending wind channel. The utility model discloses saved the installation space in the laboratory, refrigerating unit's refrigerating output utilization ratio maxmizingization simultaneously, refrigeration efficiency is high, realizes that the different positions of special high-tension apparatus icing form is unanimous, and little to the indoor air current disturbance of weather.