In　this　paper,　we　studied　the　compressive　strength,　flexural　strength　and　volume　resistivity　changes　of　carbon　fiber　reinforced　cement　mortar　(CFRC)　that　have　different　carbon　fiber　additions.　The　volume　resistivity　changes　of　CFRC　under　axial　single　compressive　force　and　circle　compressive　force　were　investigated.　Employing　SEM　method,the　microstructure　of　CFRC　were　observed.　The　test　results　show　that　the　CFRC　have　smart　properties,　and　the　volume　resistivity　changes　can　be　used　to　monitor　the　external　force　resulted　on　the　CFRC.