The present invention discloses a remote radio apparatus, including: a body, a mainboard, a mainboard heat sink, a maintenance cavity, an optical module, and an optical module heat sink. The maintenance cavity and the optical module heat sink are integrally connected; the optical module is mounted on a bottom surface of the optical module heat sink; the maintenance cavity and the optical module heat sink are mounted on a side surface of the body; and the mainboard heat sink is mounted on and cover the mainboard, the mainboard heat sink and the mainboard are installed on a front surface of the body, and the mainboard heat sink and the optical module heat sink are spaced by a preset distance. According to the RRU provided in the embodiments of the present invention, the optical module heat sink is separated from the mainboard heat sink, so that a heat conductivity path between the optical module heat sink and the mainboard heat sink is extended, a temperature of the optical module heat sink is reduced, and impact on the temperature of the optical module is weakened, thereby controlling the temperature of the optical module within a range required by a specification.