An underground cooling auxiliary refrigeration house comprises an underground or semi-underground refrigeration house body and a cooling heat exchange device. The refrigeration house body comprises a cylindrical bin body, a cylindrical bin bottom, a cylindrical bin shoulder and a turnover cover. The underground cooling auxiliary refrigeration house is characterized in that a heat exchange interface is arranged inside the wall of the refrigeration house body or on the surface of the wall of the refrigeration house body or inside the refrigeration house body or on the periphery smaller than 5 m away from the refrigeration house body, and the cooling heat exchange device is connected and installed through the heat exchange interface; the cooling heat exchange device comprises a heat pipe heat exchange device and a pipeline heat exchange device and comprises a heat pump unit and a fan which are used for achieving the direct cooling purpose. According to the underground cooling auxiliary refrigeration house, no energy is consumed by means of one-way heat transfer of a heat pipe, and the heat dissipation power of a tube plate heat exchanger is large. The temperature of stores in the Yangtze River Delta area does not exceed 8 DEG C in the first summer. Temperature and humidity can be decreased by vacuumizing a liner container. In an overland common point, a photovoltaic underground fruit cooling refrigeration house is built independent of a power grid. The underground or semi-underground refrigeration house which is provided with the heat pump unit and uses the heat pipe and the pipeline heat exchange device for cooling is beneficial to saving electricity.