The invention discloses a wire drawing die facilitating heat dissipation. The wire drawing die comprises a die sleeve, wherein a heat collection cavity is arranged in the center in the die sleeve; U-shaped heat dissipation holes and vertical heat dissipation holes communicated with the heat collection cavity are formed in the side surface of the die sleeve at equal intervals; an annular metal sinter cake is connected into the die sleeve in a clamping manner; a diamond die core is embedded into the middle of the internal surface of the metal sinter cake; and an arc sunk part is arranged on the external surface of the metal sinter cake and located in the heat collection cavity. According to the wire drawing die facilitating the heat dissipation, the arc sunk part is arranged on the surface of the metal sinter cake, so that heat on the surface of the metal sinter cake can be emitted into the heat collection cavity timely; with the match of the vertical heat dissipation holes, transverse heat dissipation holes and the U-shaped heat dissipation holes, the heat in the heat collection cavity can be dissipated in different directions; a heat-dissipation effect of the wire drawing die is further improved; the damage of the wire drawing die is reduced; the processing quality is improved; and the service life of the die is prolonged.