The invention relates to a pumping-unit wellhead sealing filler with polished rod repairing capability. The invention mainly solves the problem that the sealing effect of packing filler is seriously influenced due to excessive filler abrasion caused by uneven surface of an existing polished rod. The pumping-unit wellhead sealing filler with polished rod repairing capability comprises the followingcomponents in percentage by mass: 25-50% of rubber particles, 15-20% of epoxy resin, 5-20% of crude wax, 5-10% of super absorbent polymer (SAP) resin, 5-15% of vinyl chloride copolymer resin, 15-25%of a plasticizer, 3-5% of a dehumidifier, 1-2% of a foaming agent, 0.2-1.0% of a curing agent, 5%-15% of talcum powder, 5%-10% of molybdenum disulfide lithium-based lubricating grease and 3%-5% of base oil. According to the pumping-unit wellhead sealing filler with polished rod repairing capability, grooves of surface defects of the polished rod are basically filled, leveled and hardened, and a hot repairing effect is achieved, so that excessive filler abrasion caused by uneven surface of the polished rod is reduced, and the service life of the packing filler is prolonged.