The utility model relates to the technical field of research, development and design of computer accessories, in particular to a fixing structure of a heat dissipation device, which comprises a heat dissipation device body, a support and a fixing piece, the heat dissipation device body is assembled on the support, the fixing piece is provided with an
insertion hole corresponding to the fixing piece, and the heat dissipation device body is inserted into the
insertion hole. One end of the fixing piece is assembled in the radiator body through the inserting hole, a first installation hole is formed in the other end of the fixing piece, and a second installation hole corresponding to the first installation hole is formed in the support. And the other end of the fixing piece is assembled on the bracket through the matching of the mounting piece, the first mounting hole and the second mounting hole. The structure disclosed by the utility model has the advantages that the structure disclosed by the utility model can effectively
resist impact caused by external forces such as bumping, collision and
extrusion in a transportation process; the risk that the heat dissipation device is damaged in the transportation link is reduced, and performance reduction and service life shortening caused by transportation damage are avoided.