The utility model discloses a spool supporting frame for warping yarns. The spool supporting frame comprises a frame body, wherein the frame body is an L-shaped frame body comprising a first surface and a second surface which is vertical to the first surface, the tail end, which is far away from the second surface, of the first surface is provided with a spool supporting shaft, the axis of the spool supporting shaft is parallel to the second surface, a tensioner and a spool sequentially sleeve the spool supporting shaft, the spool supporting shaft is provided with a fixing device for fixing the spool, and the second surface is provided with a magnetic hole. By adopting the spool supporting frame for warping the yarns, the uniformity of the tension of the yarns in the warping process can be guaranteed, the broken ends of the yarns and the abrasion of the yarns in the warping process can be reduced, the twisting and knotting of the yarns can be prevented, and the warping quality can be improved.