The utility model discloses a novel coaxial terminal load device. The utility model relates to the technical field of microwave passive devices and heat dissipation equipment. The problems that an existing coaxial terminal load device is not good enough in heat dissipation effect; defects of lack of dust prevention capability, the coaxial load comprises a coaxial load body. The radiator comprisesa heat transfer base, a radiator support, radiating fins, a water cooling pipeline, a water inlet, a water outlet, a radiating pipe, a fan module, a radiating fan, a fan dustproof window, a fan support, a mounting notch, a first edge part, a second edge part, a mounting support, a first connecting plate, a second connecting plate, bolts, a base dustproof cover, threaded holes, mounting holes, a water pump, a water tank, a water tank heat exchanger and a rotating shaft. The LED lamp has the advantages of being good in heat dissipation capacity and dust prevention capacity.