In　this　project,　the　utility　of　virtual　environment　modeling　techniques　based　on　geometric　model　on　modeling　street　virtual　reality　systems　was　studied.　The　aim　is　to　design　a　set　of　modeling　streetseape　system　based　on　virtual　reality　systems.　In　designation　phase,　this　system　was　based　on　computer　graphics,　and　virtual　environment　entities　were　set　up　modeled　by　real　entities　in　life.　In　the　study,　the　East　and　West　Huashi　Street　in　Chongwen　district　was　taken　as　a　study　area,　the　model　of　the　scene　was　set　up　by　virtual　reality　geo-information　system,　special　virtual　reality　modeling　software　Multigen　Creator　was　used　to　set　up　the　3D　environment　of　the　space,　and　the　virtual　reality　scene　was　set　up　with　advanced　C　language　and　called　Vega　function　library,　so　that　interactive　manipulation　of　boosting,　reducing,　turning,　searching　and　roaming　of　the　virtual　scene　could　be　realized.