The invention discloses a radiator structure with double heat conduction faces. A radiator comprises a strip-shaped bottom plate and a main fin. The main fin is diverged outwards from the two opposite faces of the bottom plate. The portions, diverged towards the two sides, of the main fin are provided with multiple sub fins, the main fin and the bottom plate form a trapezoid groove, and a rectangular cavity is defined by the outer contour line of the sub fins in the trapezoid groove and the bottom plate. The cavity is arranged, and the double heat conduction faces are formed, so that a heating body can be arranged on the two heat conduction faces, heat dissipation is achieved at the same time, and miniaturization of equipment is facilitated; a material with good heat conduction is arranged on one of the heat conduction faces, and the overall heat conduction efficiency and heat radiation efficiency of the radiator can be improved; and the effect that the position of the radiator is stable can be guaranteed through mounting structures, the radiator structure is suitable for matching structures in different directions, and the application range of the radiator is broadened.