Development of groundwater geographic information system is one of hot issues of groundwater resources management research nowadays.Supported by advanced geographic information system softwares,combined with the characteristics of groundwater resources of Zunyi City,and actual conditions of water resources management,the authors finishes the design and development of GIS of groundwater resources in this paper.The existing abundant groundwater monitoring materials could be managed conveniently by development of this system,and it will provide assistant decision su`ports for reasonable exploitation.