The　environmental　impact　of　new　technology　is　important　and　interesting　for　academic　research　in　the　field　of　new　technology　assessment.　A　thorough　presentation　of　the　approaches,　methods　and　tools　that　have　been　introduced　or　employed　in　the　field　of　technology　assessment　such　as　toxicology,　life　cycle　assessment　method　(LCA),　the　combination　of　LCA　and　toxicology　for　environmental　impact　of　new　technological　assessment,　as　well　as　the　frame　of　new　technological　impact　on　the　environment　based　on　technology　forecast　and　the　application　and　so　on　is　provided　in　the　paper.　Based　on　the　reviews　of　the　current　situation,　it＇s　argued　the　shortage　of　existing　research,　in　order　to　cover　which,　one　of　the　mainly　prospects　for　future　research　work　is　the　scope　identification　in　research,　and　establishment　of　assessment　benchmark,　and　further　research　and　empirical　studies　on　promising　methods　may　be　applied.