To　improve　the　raw　material　resources　of　ultra-high　performance　concrete　(UHPC)　for　construction　and　application,　a　new　kind　of　UHPC-reactive　powder　concrete　with　superfine　cement　(SC-RPC)　was　prepared.　And　the　influences　of　water　to　binder　ratio,　sand　to　binder　ratio,　dosage　of　additives,　size　range　of　aggregate　of　sand,　replacing　amount　of　superfine　cement(SC)　by　ordinary　Portland　cement(OPC),　fly　ash(FA)　and　ground　granulated　blast　furnace(GGBFS)　on　compressive　strength,　void　ratio　and　fluidity　of　SC-RPC　mortar　were　investigated.　The　test　results　show　that　SC　can　be　used　as　the　binder　solely　to　prepare　SC-RPC.　By　using　30%　GGBFS　and　10%　FA　to　replace　the　amount　(by　mass)　of　SC,　the　compressive　strength　of　SC-RPC　mortar　is　the　highest,　the　fluidity　is　the　best.　Blending　with　OPC　caused　void　ratio　of　the　material　increase　and　compressive　strength　decrease.　To　fit　the　requirement　of　construction　project,　ordinary　river　sand　with　suitable　size　range　can　be　used　as　aggregate.　The　suitable　dosage　of　defoaming　agent　was　recommended　to　be　added　into　the　mixture　to　increase　the　density.　The　computation　module　of　the　compressive　strength　influenced　by　factors　of　water　to　binder　ratio　and　void　ratio　was　established　for　mix　proportion　design　of　SC-RPC　mortar,　and　the　factor　of　steel　fiber　content　was　also　considered　to　calculate　the　compressive　strength　of　SC-RPC.