The invention provides photovoltaic cooling equipment and a photovoltaic centrifugal machine system. The photovoltaic cooling equipment comprises a liquid absorbing core and multiple fins, the liquidabsorbing core is made from a foamy copper material, an evaporation surface and a condensing surface are formed on the liquid absorbing core, the fins are uniformly distributed on the condensing surface, and the evaporation surface is attached to equipment to be subjected to photovoltaic cooling. By means of the photovoltaic cooling equipment and the photovoltaic centrifugal machine system, through the adoption of a heat absorbing core which is made from foamy copper and a heat transfer working medium which is located in an accommodation cavity of the heat absorbing core, and through the principle that the heat transfer working medium absorbs heat on the evaporation surface of the heat absorbing core and dissipates heat on the condensing surface, a frequency converter is cooled; meanwhile,through the arrangement of a fan, the cooling efficiency of the condensing surface can be improved; through air outlet of a fan coil, the utilization rate of system energy can be increased; meanwhile, by the adoption of the structure of the photovoltaic cooling equipment, the photovoltaic centrifugal machine system can meet the using requirement of an R410A refrigerating agent, and the system cost and the running cost are effectively lowered.