A　semisolid　hypereutectic　high　chromium　cast　iron　with　finer　initial　carbide　in　the　microstructure　was　obtained　by　slope　cooling　body　method,　and　the　impact　toughness　reached　above　twice　that　of　conventional　hypereutectic　high　chromium　cast　iron.　Three-body　abrasion　tests　for　the　two　sorts　of　hypereutectic　high　chromium　cast　iron　and　the　hypoeutectic　high　chromium　cast　iron　in　common　use　were　conducted　to　compare　their　wear　resistances.　The　results　indicate　that　the　wear　resistances　of　both　hypereutectic　ones　are　improved　by　32%　and　49%,　respectively,　compared　with　that　of　the　hypoeutectic　one.　The　microstructural　analysis　of　the　semisolid　hypereutectic　cast　iron　shows　that　a　great　quantity　of　shrinkage　porosities　hinder　the　improvement　of　impact　toughness,　hardness　and　wear　resistance　of　the　specimens,　and　it　is　significant　to　develop　the　properties　of　the　semisolid　hypereutectic　ones　by　reducing　or　eliminating　the　shrinkage　porosities.