Subglacial　topography　is　an　important　indicator　that　both　reflects　and　itself　influences　subglacial　conditions　and　processes　of　the　Antarctic　ice　sheet.　Ice　sheet　dynamics　and　basal　erosional　processes　erode　pre-glacial　topography.　As　such,　bedrock　roughness　metrics　can　act　as　indicators　of　subglacial　conditions　and　processes　(including　spatial　variability　thereof).　More　specifically,　bedrock　roughness　data　can　help　deduce　the　material　composition　of　the　bedrock,　the　conditions　of　sub-glacial　erosion　and　basal　sliding,　ice　dynamics,　and　subglacial　geomorphology.　In　this　study,　the　potential　utility　of　bedrock　roughness　characterization　and　the　development　of　associated　quantitative　methods　are　introduced.　We　focus　on　the　evolution　of　two　methods,　one　is　based　on　the　statistical　characteristics　of　the　topography-derived　(topographic)　roughness　and　the　other　is　the　scattering-derived　roughness.　Then,　relevant　studies　on　subglacial　conditions　and　ice　sheet　evolution　using　bedrock　roughness　were　reviewed　by　evaluating　the　relationship　between　bedrock　roughness　and　ice　dynamics,　subglacial　geomorphology,　basal　thermal　mechanism,　subglacial　geology,　and　so　forth.　Finally,　the　current　situation　and　future　potential　developments　around　the　study　subglacial　conditions　and　processes　using　bedrock　roughness　are　considered.　©　2023　Azerbaijan　Medical　Journal.　All　rights　reserved.