Abstract: Using ambient energy to cool the telecommunication base station in the transitional seasons and winter is an effective measure,which indicates that the potential of energy saving is considerable.Based on the analysis of the energy consumption characteristics and environmental requirements,the energy consumption model is set up,and the simulation analysis is carried out under different conditions in the typical areas.Taking the brick wall with the thicknesses of 180,240,and 370 mm and the polystyrene sandwich panel of 50,75,and 100 mm as an example,the room-base temperature is analyzed,the air conditioning cooling load and the building envelope heat dissipation in the whole year are simulated under different environmental control temperatures,the effect of the air conditioning system coupled with a thermosyphon heat exchanger on the energy consumption of the communication base station is compared with that of the air conditioning system,and the energy saving effect of the thermosyphon heat exchanger is also discussed in different areas.Result shows that higher environmental control temperature(25-28 ℃) can effectively reduce energy consumption,and the best results can reach 16%.Simulation results show that the envelope material affects the air conditioning cooling load much.For brick material with the envelope of 180 mm in thickness performs better with larger heat transfer coefficient and is propitious to dissipate the heat of the base station.For polystyrene sandwich panel material with the envelope of 50 mm in thickness performs better.Compared with the air conditioning system,the air conditioning system coupled with the thermosyphon heat exchanger obviously saves energy with the rate of 54.5%.