Carbidic　austempered　ductile　iron　(CADI)　is　a　new　type　of　wear-resistant　material　with　high　performance　developed　in　recent　years.　The　effect　of　austempered　temperature　on　the　microstructure　and　properties　of　high　B-bearing　CADI　was　investigated.　Boron　is　an　element　that　significantly　interferes　with　the　spheroidization　process.　When　the　boron　content　in　CADI　is　high,　the　crystallization　of　spheroidal　graphite　in　the　as-cast　microstructure　is　hindered,　and　its　roundness,　spheroidization　rate,　and　volume　fraction　are　significantly　reduced.　The　results　of　its　heat　treatment　process　show　that　with　the　increase　of　austempered　temperature,　the　volume　fraction　of　residual　austenite　in　the　matrix　increased,　the　size　of　acicular　ferrite　becomes　coarser,　and　the　ferrite　also　increases　significantly,　and　the　macroscopic　hardness　and　wear　resistance　of　the　specimens　gradually　decreased.