以南昌地震台2008年以来的地电场观测资料为研究对象，在对比分析观测数据质量的基础上，阐明影响地电场观测的主要干扰因素，并分析造成观测资料质量不高的原因，主要是观测场地不平，6个电极所处的埋设环境存在较大差异。

In this paper, the observational data of the geoelectric field in Nanchangsince 2008 are studied. On the basis of the comparison and analysis of observational data quality, the main interference factor of geoelectric field are clarified. There are two reasons why the observational data quality is not high: the uneven observation site and the big difference of the 6 electrodes embedded environment.several improvement measures are proposed in view of Nanchang Seismic Station specific situations.