The　effects　of　different　quenching　temperatures　on　the　microstructure　and　properties　of　3.3C-20.0Cr-1.0W-0.5B-2.0V-1.8Mo　(wt.%)　high-chromium　cast　iron　were　investigated　using　an　optical　microscope,　scanning　electron　microscope,　X-ray　diffractometer,　Rockwell　hardness　tester,　microhardness　tester,　and　wear　testing　machine.　The　results　show　that　the　microstructure　of　as-cast　multivariate　high　chromium　cast　iron　mainly　consists　of　eutectic　carbides　(M7C3),　austenite　and　martensite　matrix.　In　the　process　of　quenching　temperature　increasing　from　950　degrees　C　to　1150　degrees　C,　the　morphology　of　massive　eutectic　carbide　(M7C3)　did　not　change.　Acicular　eutectic　carbide　(M7C3)　appeared　to　aggregate　and　grow,　and　was　distributed　in　the　form　of　blocks　or　rods.　Secondary　carbides　(M23C6)　were　precipitated　in　the　matrix.　The　matrix　is　transformed　from　austenite　to　martensite,　with　a　small　amount　of　residual　austenite.　The　hardness　and　wear　resistance　firstly　increased　and　then　decreased.　The　hardness　of　the　1100　degrees　C　x　1　h　+　fog-cooled　high-chromium　cast　iron　reaches　a　peak　of　67.0　HRC,　and　the　abrasion　resistance　increases　by　37.0%　compared　with　that　of　the　950　degrees　C　x　1　h　+　fog-cooled　specimen.