Heat dissipation device for prefabricated cabin

The utility model discloses a heat dissipation device for a prefabricated cabin, which relates to the technical field of prefabricated cabins and comprises a cabin body, a heat dissipation assembly is arranged in the cabin body and comprises two heat dissipation frames, a plurality of first heat dissipation fans, a plurality of second heat dissipation fans, two heat dissipation grooves and an auxiliary frame, the two heat dissipation frames are fixedly arranged at the top end and the bottom end of the interior of the cabin body respectively, and a plurality of first heat dissipation fans are fixedly arranged on one side of each heat dissipation frame. Meanwhile, a plurality of third cooling fans are matched for circulating ventilation in the cabin body so as to export heat, and a plurality of first cooling fans and second cooling fans are used, so that the ventilation efficiency is improved after electric appliance parts are arranged in the cabin body, and the ventilation and heat dissipation effects are prev