地电场观测是地震电磁前兆观测方法之一，由于观测物理量的原因，所受到的干扰因素比较多。为了正确鉴别震前异常信息，对临汾中心地震台影响地电场观测数据的各种干扰因素做了详细的研究，并对典型干扰事件进行了举例说明。

Geoelectric field observation is one of observation methods of seismic electromagnetic precursors. Due to the observed physical quantities, the data are affected by many interference factors. In order to distinguish abnormal information before earthquakes, each interference factor which will influence on the geoelectric field observation data at Linfen Central Seismic Station has been studied in detail, and some typical interference events have been illustrated in this paper.