The invention relates to the technical field of a blanking plug device in an oil tube and provides a recyclable blanking plug in the oil tube. The recyclable blanking plug comprises a back off sub, a fishing head, an unsetting mandrel, an upper slips barrel, a rubber packer mandrel, a lower slips seat, a lower joint, a lower mandrel and a locking pawl, wherein an upper mounting shaft cavity opening downwards is formed in the back off sub; the fishing head is arranged in the upper mounting shaft cavity in a sleeving manner, and the inner wall of the lower part of the fishing head is fixedly mounted together with the outer wall of the upper part of the unsetting mandrel; long shaft holes are formed uniformly in the circumference of the upper part of the unsetting mandrel. The blanking plug is reasonable and compact in structure and convenient to use, a steel wire running tool is used during setting and unsetting, and setting and unsetting operation is simple and feasible, larger gripping force can be provided under the condition that good plugging is guaranteed, the plug does not move after plugging, and sealing is guaranteed; meanwhile, the plug can be recycled after unsetting, can perform setting in any position in the oil tube, the plugging pressure is high, various working condition requirements are met, and the cost is reduced effectively.