The invention relates to a pay-off spool, which comprises a spool body, an upper spool surface and a lower spool surface, wherein the spool body is used for winding a copper wire; the upper spool surface is arranged on the upper part of the spool body; the lower spool surface is arranged on the lower part of the spool body; the upper spool surface is provided with a disk of which the periphery is smooth; and the upper spool surface is covered by the disk. According to the pay-off spool disclosed by the invention, the disk with the smooth edge is arranged on the upper spool surface, and the phenomenon that the copper wire is broken due to friction with the upper spool surface in the pay-off process of the pay-off spool can be avoided. The pay-off spool has the advantages of simple structure and low cost.