In　this　paper,　the　finite　element　software　ProCAST　version　14.5　was　used　to　simulate　the　temperature　field,　flow　field　and　defect　prediction　in　the　filling　and　solidification　process　of　hypereutectic　high-chromium　cast　iron.　The　effects　of　pouring　temperature,　negative　pressure　and　the　amount　of　suspension　agent　added　during　the　technological　process　were　explored.　The　optimum　process　parameters　were　presented.　It　was　found　that　the　suspension　agent　has　a　certain　hindrance　to　the　filling　process,　but　the　filling　process　remains　stable.　In　the　solidification　stage,　89.4%　of　the　suspension　agent　melted,　resulting　in　a　relative　supercooling　degree　of　50　degrees　C,　which　had　a　certain　chilling　effect　and　improved　the　solidification　rate.