Cement-based　material　are　prone　to　cracks.　Self-healing　concrete　appealed　to　extensive　discussion　owing　to　its　crack-healing　functions　without　human　intervene.　In　this　study,　epoxy　resin　microcapsules　and　dimethyl　thio-toluene　diamine　microcapsules　(DMTDA　microcapsules)　were　prepared　successfully　based　on　different　mechanisms.　Both　of　the　microcapsules　were　spherical　with　favorable　dispersion　and　good　thermal　stability.　The　effects　of　micmcapsules　on　the　fluidity,　compressive　strength　and　open　porosity　of　self-healing　cementitious　composite　were　investigated,　and　the　self-healing　performance　was　characterized　by　microscopic　observation　of　the　repairable　width　of　single　cracks.　It　turned　out　that　the　fluidity　and　compressive　strength　of　the　self-healing　cementitious　composite　decreased　gradually　with　the　increase　of　the　concentration　of　microcapsules.　The　open　porosity　of　self-healing　cementitious　composite　hydrated　for　28　days　decreased　by　19.1%　when　the　concentration　of　microcapsules　was　9.0%　by　weight.　Ultimately,　the　single　cracks　with　width　below　40　mu　m　could　be　repaired　completely　when　self-healing　cementitious　composite　was　hydrated　for　7　days.