The invention discloses a communication base station which comprises a wall, a roof, communication equipment and a heat dissipation system. The wall is of a heat preservation structure, the roof comprises a first roof layer and a second roof layer, the first roof layer is a heat preservation and heat insulation layer, and a closed space is formed by the first roof layer and the wall. The communication equipment is arranged in the closed space. The second roof layer is arranged above the first roof layer, and a preset distance is kept between the first roof layer and the second roof layer. The heat dissipation system comprises an evaporation unit, a transmission unit and a condensation unit. The evaporation unit comprises a first evaporation plate, a second evaporation plate and a first gas collecting tube. The condensation unit comprises a first condensation plate, a second condensation plate, a second gas collecting tube and a third gas collecting tube. The transmission unit comprises a first transmission tube and a second transmission tube. The communication base station does not need to be supplied with external circulation power, and therefore energy consumption is low and is almost zero.