Optical module heat dissipation apparatus

The utility model discloses an optical module heat dissipation apparatus, it includes: settle the PCB board of optical module, install the radiator of optical module upper end, settle being used for below the PCB board to increase the radiating welt subassembly of optical module, wherein, the PCB board with the corresponding position department of optical module has seted up the through -hole, the through -hole with the welt subassembly has constituted and is used for increasing the radiating additional heat radiation structure of optical module. The utility model discloses an optical module heat dissipation apparatus can utilize the optimization of dispelling the heat of optical module lower surface or welt, improves the radiating efficiency of optical module.