Based on the site survey in the damage area of Wenchuan earthquake

the typical damages of mobile communication base stations are analyzed in this paper.The direct influences on the mobile communication system include tower damage

building destruction

communication equipment failure

optical cable failure and the external power supply interruption.Afew of base station were also damaged by secondary fire because of the battery short circuit.According to the investigation of seismic disasters

the communication optical cable is one of weak links for the current mobile communication network

many cable lines were destroyed by the landslide or rockfall in Wenchuan earthquake.The topographic effect and whiplash effect also increased the serious of damage because that the mobile communication base station was built on the top of a hill or a building.