Abstract: Objective In recent years,the structure and functions of Virtual Geographic Environments(VGEs)have become clearer and how they could be used to support geographic analysis and geographic experi-ment has received serious attention.Based on the analysis of the characteristics of geographic experi-ments,this paper discusses the potential contributions of VGEs to traditional geographic experimenta-tion,thus to encourage researchers to perform geographic experiments based on VGEs in a fused real-ity-virtuality and collaborative way.