This　research　through　the　tests　of　bending　property　of　a　certain　steel　wire　rope　in　the　conditions　of　no　tension　state　and　tension　state,　obtained　a　correlation　between　the　bending　performance　and　wire　rope　tension,　defined　a　gain　tension　coefficient　(k)　to　the　bending　stiffness　of　wire　rope,　then　open　a　way　to　research　steel　wire　rope,　and　developed　steel　wire　rope　tension　measurement　method　by　three　points　bending.