Based　on　the　investigation　of　the　mobile　communication　system　in　Dujiangyan　city　after　the　Wenchuan　earthquake,　the　earthquake　damage　phenomena　of　the　mobile　communication　equipment　and　its　building　supporters　were　summarized　in　this　paper.　The　influence　of　the　damaged　building　on　mobile　communication　system　was　analyzed.　The　earthquake　damage　counter　measures　for　the　construction　and　re-construction　in　earthquake　disaster　area,　for　example　the　selection　of　building　supporters　and　equipment　rooms,　the　fastening　of　the　equipment　and　the　anti-seismic　regulation　legislation　of　communication　system,　were　proposed.