Heat dissipation assembly and laser module

The utility model provides a heat dissipation assembly and a laser module. The heat dissipation assembly comprises a heat dissipation fan, a first heat dissipation structure and a second heat dissipation structure, the first heat dissipation structure comprises a side plate and a first guide part, and the heat dissipation fan is arranged on the side plate; the first guide part is arranged in the area, located on the outer side of the cooling fan, of the side plate, and the first guide part limits a first cooling flow channel penetrating in the first direction; the second heat dissipation structure is connected to the light emitting side of the laser generator and comprises a first through hole and a second guide part, and the first through hole is used for allowing laser emitted by the laser generator to pass through; the second guide part corresponds to and communicates with the first guide part and limits a second heat dissipation flow channel penetrating in the second direction, and a preset included angle