The utility model discloses a pile foundation is hook for experiment, including mobile jib and the hook of setting at the mobile jib end, its characterized in that the mobile jib in be equipped with the push -and -pull device, metal steel sheet, lower metal steel sheet are gone up to the recess the recess be located the mobile jib both sides, push -and -pull device card in the recess, push -and -pull device and last metal steel sheet rigid connection, go up metal steel sheet and two upper end rigid connection that go up rigid connection rod, two lower rigid connection rod's lower extreme and lower metal steel sheet rigid connection, go up rigid connection rod and correspond with rigid connection rod down and articulate, the quadrangle of formation activity, the hook corresponds even fixedly with lower rigid connection rod lower extreme. The beneficial effects of the utility model are that: the handle that the mobile jib top set up is conveniently carried and being drawn, and the push -and -pull device can promote forward as required and stimulate backward on as for the recess, and fixed at any time, catch hold of the article of the different diameters of pull -up as required with a hook.