This　study　is　to　reveal　the　influence　of　the　amount　of　carbon　content　on　the　microstructure　evolution,　mechanical　properties,　and　wear　properties　of　Hypereutectic　High　Chromium　Cast　Iron　(HHCCI).　The　results　indicated　that　the　carbon　content　plays　a　key　role　in　the　regulation　of　carbides　in　the　cast　iron　microstructure.　As　the　amount　of　carbon　content　rises,　the　primary　carbides　in　the　cast　iron　microstructure　become　apparently　coarser,　and　the　volume　fraction　of　carbides　gradually　increases.　The　carbide　volume　fraction　reaches　62%　when　the　carbon　content　is　5wt.%.　When　the　value　of　the　carbon　content　increases,　the　accumulation　and　growth　of　eutectic　carbides　in　the　heat-treated　cast　iron　become　more　and　more　obvious.　After　heat　treatment,　a　large　number　of　secondary　carbides　will　be　precipitated　from　the　austenite　matrix,　in　the　form　of　fine　particles　or　short　rods,　with　a　dispersed　distribution.　The　macroscopic　hardness　of　HHCCI　has　increased.　When　the　carbon　content　is　3.5wt.%,　the　macroscopic　hardness　is　61.2　HRC,　and　when　the　carbon　content　becomes　5wt.%,　it　reaches　64.3　HRC.　The　wear　resistance　of　HHCCI　increases　with　the　value　of　the　carbon　content　increases.　When　the　carbon　content　was　increased　from　3.5wt.%　to　5.0wt.%,　the　wear　resistance　of　the　material　increased　by　85.7%.　The　wear　of　HHCCI　is　mainly　adhesive　wear　and　fatigue　wear,　and　the　wear　morphology　is　mainly　spalling　pits　and　wear　debris.