Hypereutectic　high　chromium　cast　iron　is　an　excellent　wear-resistant　material.　It　is　widely　used　in　the　production　of　flow　parts　of　slurry　pumps.　With　the　continuous　increase　of　carbon　content　in　hypereutectic　high　chromium　cast　iron,　the　primary　carbides　in　the　microstructure　become　coarse,　and　cracks　will　appear　under　the　impact　of　high　impact　or　large　particles.　In　order　to　improve　the　toughness　of　hypereutectic　high　chromium　cast　iron　so　as　to　improve　its　comprehensive　performance,　many　scholars　at　home　and　abroad　have　done　some　researches　in　the　field　of　carbide　refinement.　This　article　introduces　the　latest　research　results　of　refining　carbides　in　hypereutectic　high-chromium　cast　iron.　It　mainly　includes　three　methods:　modification　and　inoculation,　semi-solid　processing,　and　electric　current　pulse.　Combining　the　current　situation,　the　future　directions　of　research　and　development　for　refinement　of　carbides　in　hypereutectic　chromium　cast　iron　is　proposed.　©　2021,　Chinese　Mechanical　Engineering　Society.　All　right　reserved.