本文介绍了紫阳县城滑坡监测工作的技术方案及数据处理方法和结果。通过各种方案的对比分析．对监测网的各种技术方案的选取提供了依据．文中所提出的依据稳健估计原理、利用Ｓ变换解决参考基准的定位问题．是基准网非稳定情况下进行监测数据处理的成功方法，颇有借鉴意义。 This paper introduces the technical scheme of Ziyang county landslide monitoring and data processing methods and results. Through a variety of programs of comparative analysis. The monitoring network provides a basis for the selection of various technical solutions. In this paper, based on the principle of robust estimation, the S transform is used to solve the problem of locating the reference datum. Is a reference network instability in the case of monitoring data processing methods of success, quite a reference.