本文利用调和分析法,处理周坪自1977年以来连续观测的形变资料,取得了较好的效果,便于直观和判断信息。在1979年秭归龙会观震前,室内水准、基线及室外短水准等几种形变观测手段,都显示了震前异常的存在,对探索长江三峡地区的地震预测预报将有一定的实际意义。 In this paper, harmonic analysis method is used to deal with the continuous observation of deformation data of Zhou Ping since 1977, which has achieved good results and is easy to visualize and judge information. Before the Zigui Longhui Observation Seismological Observation in 1979, several deformation observation methods, such as indoor leveling, baseline and outdoor short leveling, all showed the existence of anomalies before the earthquake, which would have some practical significance for the earthquake prediction and prediction of the Three Gorges area.