The utility model discloses a hollow land roller aims at providing the hollow land roller that a suppression is effectual, reduce consumption of power, low in manufacturing cost. Four these spokes setup along the circumferencial direction equipartition and lead to epaxially at this, this spoke is perpendicular with this logical axle axis along radially, this suppression diving board main part iscircular arc plate -type form, this suppression diving board circular arc board is equipped with radial bullet handle, admittedly, adorn and to suppress the diving board along the same circumferencialdirection through radially playing the handle on every this spoke, should suppress diving board circular arc board for four constitutes hollow suppression monomer, the equidistant setting of axial isfollowed to this hollow suppression monomer, and lead to the axle head end to terminal from this, this hollow suppression monomer sets up according to angle of rotation such as the hands of spiral inproper order, free this spoke outside of head end and terminal this hollow suppression sets up the end baffle respectively. The utility model is suitable for an operation of suppression hack.