OBJECTIVE:　To　explore　the　mechanical　property　of　intact　long　bone　through　three-point　bending　test　of　rabbit　tibia　according　to　mechanics　of　materials.　METHODS:　Ten　pairs　of　normal　rabbits　tibia　were　treated　on　three-point　bending　test　with　80　mm　supporting　distance　in　order　to　corroborate　the　virtual　loading　test　on　bone　model.　RESULTS:　Bending　stiffness　and　strength　of　10　pairs　of　normal　rabbit　tibia　were　obtained.　The　maximum　flexibility　of　the　right　and　the　left　tibia　was　(2.737　+/-　0.262)　mm　and　(2.739　+/-　0.233)　mm　respectively.　The　maximum　load,　which　indicated　the　bending　strength,　of　the　right　and　the　left　tibia　was　(17.803　+/-　2.675)　kg　and　(18.366　+/-　2.653)　kg　respectively.　The　area　under　the　load-flexibility　curve　before　fail　of　the　right　and　the　left　tibia　was　(23.829　+/-　4.413)　kg/mm　and　(24.725　+/-　4.101)　kg　x　mm　respectively.　The　slope　of　the　load-flexibility　curve　which　indicate　the　stiffness　of　the　right　and　the　left　tibia　was　(7.545　+/-　1.310)　kg/mm　and　(7.631　+/-　1.174)　kg　x　mm　respectively.　CONCLUSION:　The　discrepancy　between　different　animal　body　is　larger　than　conventionally　required.　It＇s　suggested　for　performing　three-point　bending　test　of　long　bone　of　the　body　both　sides　in　pair.