伴随着城镇规模的不断拓展，各大城市构建地铁以便缓解日渐阻塞的交通问题，以确保道路交通的顺畅。地铁自诞生以来便有着舒适及便捷的优势，而且安全性比起其他交通方式要高，逐渐受到人们的喜爱。然而，地铁通信布设包含有多重的分支体系，子系统也很多。日常施工之中，各系统交叉施工较复杂。并且在各个地段内，地铁路径又有着自身的独特性。为此，有必要解析通信体系特有的施工疑难，确保施工进度符合建设的需要。“,”with the constant expansion of urban scale, cities need to build the subway to moderate increasingly blocking traf ic, to ensure road traf ic flow. Since the beginning of the subway has the advantages of comfortable and convenient, and security to be higher than other modes of transport, loved by the people gradual y. However, metro communication layout contains multiple branch system, subsystem is very much also. Daily construction, the system construction is relatively complex. And in each area, subway path has its own uniqueness. Therefore, it is necessary to resolve communication system construction dif iculty, ensure construction schedule meet the needs of the construction.