本文介绍秦皇岛本地电话网的调整原则，包括局所建设原则，交换网组网原则；提出本地电话网的调整方案和过渡措施，以及新建局交换机的选型要求。 This article introduces the adjustment principle of Qinhuangdao local telephone network, including the principle of building the office and the principle of switching network. It proposes the adjustment plan and transitional measures of the local telephone network and the selection requirements of the new office switch.