The utility model discloses a card arm lead screw tension test fixture, its characterized in that: including leading guiding plate, pulling lead guiding plate's pull rod, pulling the pulltion plate and the connecting piece of pull rod, the connecting piece connect in pulltion plate, it is equipped with the through -hole to lead guiding plate. The utility model discloses solved the draw -in groove lead screw effectively and can't connect the problem of putting forth effort on static load testing machine.