详细分析龙门石窟地下金属管道对地电观测的影响，通过对金属管道多种方法处理后，使之恢复地电原始观测环境，为其它地电台站遇到此类干扰提供一些解决方法及参考。

We analysed particularly underground metal pipe of Longmen Grottoes to the influence of the geoelectrical observation. Then, we recovered the environment of the original observation by processing metal pipe in various methods. So it will provide some solutions and reference for other geoelectrical station when they meet such interference.