Abstract: According to the external and internal features of communication base station, the energy-consumption, which is impacted by various factors such as the external environment and internal equipment constituted, is analysed qualitatively.Then the energy-consumption model of the station, which is based on DeST and lots of historical data, is established.This model is used to analyse the energy-consumption status of the station.On the basis of the analysis, the optimal model considering power-consumption and various energy-consuming factors is obtained, and the scheme of base station energy-saving in south region of China is also given.