Objectives:　To　study　the　comprehensive　biomechanical　properties　of　the　cancellous　bone　of　distal　femur　through　a　series　of　mechanical　tests,　and　provide　relevant　subjects　with　the　basic　technical　data.　Backgrounds:　The　study　on　bone　mechanics　is　a　commonly　used　approach　to　evaluate　the　biomechanical　competency　of　bone.　The　biomechanical　properties　of　bone　have　come　to　be　the　precondition　of　the　further　research　of　these　relevant　clinical　subjects.　Methods:　In　this　paper,　comprehensive　items　of　mechanical　properties　of　the　cancellous　bones　of　distal　femur　were　conducted,　and　many　valuable　test　results　were　obtained　through　a　series　of　mechanical　tests,　which　comprised　tensile　test,　compression　test,　torsion　test,　shear　test,　bending　test　and　impact　test.　The　specimens　were　extracted　from　the　normal　corpses　of　Chinese　donors　died　from　acute　head　injury.　As　another　key　problem　in　this　kind　of　experiment,　the　sampling　and　fixing　method　of　cancellous　bones　specimens　was　developed　and　optimized　in　this　research.　Results:　A　series　of　the　experimental　data　of　mechanical　properties　of　cancellous　bones　were　obtained　in　the　tests,　these　experimental　data　include　tensile　strength,　compression　strength,　yield　tensile　strength,　modulus　of　elasticity,　torsion　strength,　shear　strength,　torsion　modulus,　bending　strength,　yield　shear　limit　and　impact　toughness,　which　can　reflect　the　complex　mechanical　competency　of　bone,　being　of　great　value　and　practice　in　clinic　and　further　research　on　cancellous　bones.　The　mechanical　properties　of　the　cancellous　bones　of　distal　femur　were　analyzed　and　discussed.　Conclusions:　The　biomechanical　properties　of　the　cancellous　bones　have　a　close　relationship　with　individual　difference.　Comprehensive　items　of　the　mechanical　properties　of　the　bone　can　evaluate　the　mechanical　performance　of　the　bone　better,　and　can　provide　more　valuable　data　to　relevant　research.