On　the　basis　of　ordinary　Portland　cement　P.O　42.5,　graphene　oxide　modified　concrete　was　prepared　by　using　graphene　oxide　doped　with　0,　0.03wt%,　0.05wt%　and　0.07wt%　as　the　reinforcing　phase　of　the　matrix.　The　porosity,　mechanical　properties,　carbonation　and　wear　properties　of　modified　concrete　samples　were　tested,　and　the　correlation　of　each　index　was　analyzed.　The　results　showed　that　an　appropriate　amount　of　graphene　oxide　doping　promoted　the　hydration　reaction　of　modified　concrete,　had　on　effect　on　the　crystalline　composition　of　cement　hydration　products,　refined　the　size　of　hydration　products　and　formed　more　regular　crystalline　compounds.　With　the　increase　of　graphene　oxide　doping,　the　porosity,　carbonation　depth　and　wear　of　modified　concrete　showed　a　trend　of　first　decreasing　and　then　increasing,　while　the　compressive　strength　and　flexural　strength　showed　a　trend　of　first　increasing　and　then　decreasing.　When　the　doping　amount　of　graphene　oxide　was　0.05　wt%,　the　minimum　porosity　was　27.53%,　the　carbonization　depth　at　7　and　28　d　was　the　minimum　value　of　1.46　and　3.81　mm,　the　wear　amount　was　the　minimum　value　of　1.24　kg/m2,　and　the　tensile　strength　and　flexural　strength　at　28　d　were　the　maximum　values　of　53.9　and　6.7　MPa.　It　can　be　seen　that　when　the　doping　amount　of　graphene　oxide　is　0.05　wt%,　the　comprehensive　performance　of　modified　concrete　is　the　best.　©　2022　Journal　of　Functional　Materials.　All　rights　reserved.