The utility model relates to a be used for bent axle roll extrusion measuring supporting mobile device, it includes base, guide rail, slider, stand, tray, V type splint, cylinder etc. The pedestal mounting is on the lathe track, and the guide rail passes through the fix with screw on the base, and the fix with screw is passed through with the bottom plate in the stand bottom, and the bottom plate is fixed on the slider, and on the cylinder was fixed in the base, the piston rod is anterior to be connected with the bottom plate, and the tray passes through the guide pillar and installs above the stand two install the bearing that is used for supporting the main bearing journal through axle and spacer between the V type splint, install the (gate)wedge that is used for adjustment supporting height between tray and the stand top surface. The utility model discloses it is rational in infrastructure, make simply, supporting height -adjustable, it is convenient to remove, and labor - and time -saving is the be used for bent axle roll extrusion measuring supporting mobile device of an ideal.