The　effects　of　quenching　treatment　on　the　microstructure,　hardness,　impact　toughness,　and　wear　resistance　of　low-carbon　high-boron　cast　steel　(LCHBS)　containing　0.15-0.3　%C,　1.4-1.8　%B,　0.3-0.8　%Si,　0.8-1.2　%Mn,　0.5-0.8%Cr,　0.3-0.6%Ni,　and　0.3-0.6%Mo　have　been　investigated　by　optical　microscopy　(OM),　scanning　electron　microscopy　(SEM),　and　transmission　electron　microscopy　(TEM),　and　via　an　electron　probe　microanalyzer　(EPMA),　X-ray　diffraction　(XRD)　analysis,　impact　tester,　hardness　tester,　and　wear　tester.　The　as-cast　matrix　of　LCHBS　consists　of　pearlite　and　ferrite.　There　is　8-10　vol.%　Fe-2(B,　C)　type　borocarbides　in　the　matrix.　The　micro-hardness　of　Fe-2(B,　C)　is　1430-1480　Hv.　Fe-2(B,　C)　shows　no　obvious　change　and　the　matrix　completely　transforms　into　lath　martensite　upon　quenching　at　900　A　degrees　C　to　1100　A　degrees　C.　The　microhardness　of　the　matrix　and　the　macrohardness　of　the　LCHBS　sample　show　a　slight　increase　with　an　increase　of　homogenization　temperature.　When　the　homogenization　temperature　exceeds　1050　A　degrees　C,　no　distinct　change　in　the　hardness　is　observed.　The　change　of　homogenization　temperature　has　no　apparent　effect　on　the　impact　toughness　of　LCHBS.　The　mass　losses　of　LCHBS　increase　distinctly　when　the　wear　load　increases.　The　homogenization　temperature　is　less　than　1000　A　degrees　C　and　the　wear　rate　of　LCHBS　decreases　with　an　increase　of　temperature.　The　wear　rate　does　not　display　any　obvious　change　after　exceeding　a　homogenization　temperature　of　1000　A　degrees　C.