By　means　of　optical　microscope,　scanning　electron　microscope,　X-ray　diffraction,　energy　dispersive　spectrometer,　Rockwell　and　Vickers　hardness　tester,　and　wear　tester,　the　microstructure　and　properties　of　Fe-10Cr-1B-4Al　alloy　quenched　in　different　temperature　has　been　studied.　The　results　show　that　the　microstructure　of　as-cast　Fe-10Cr-1B-4Al　are　composed　of　pearlite,　ferrite　and　the　eutectic　borocarbide　which　shows　a　network　distribution　along　grain　boundaries.　The　eutectic　borocarbides　are　composed　of　M-7(C,　B)(3),　M-2(B,　C)　and　M-23(C,　B)(6).　As　the　quenching　temperature　increases,　the　network　structure　of　eutectic　borocarbide　breaks,　but　the　type　of　eutectic　borocarbide　has　no　obvious　change,　and　the　matrix　structure　changes　gradually　from　ferrite　to　pearlite.　As　the　quenching　temperature　increases,　the　macro-hardness　and　the　matrix　micro-hardness　of　Fe-10Cr-1B-4Al　alloy　increases　gradually.　The　macro-hardness　and　matrix　micro-hardness　of　alloy　reach　the　highest　value　of　45.7　HRC　and　388.1　HV,　respectively　when　the　quenching　temperature　is　1150　degrees　C.　The　hardness　of　alloy　decreases　slightly　when　the　quenching　temperature　is　too　high.　While　quenching　at　1150　degrees　C,　the　alloy　has　the　highest　wear　resistance　and　good　comprehensive　properties.