The invention relates to flattening equipment, in particular to ignored place flattening equipment for road building. The invention aims to provide ignored place flattening equipment for road building, which aims at flattening places ignored by a compactor. The ignored place flattening equipment for road building, which is provided by the invention, comprises a vehicle body, cushion blocks, wheels, a guide sleeve, a guide rod, a pressing block, first springs, a motor, a screw rod, a first nut, L-shaped connection rods, a barrel-shaped cam, sliding rails and the like, wherein the cushion blocksare symmetrically arranged at left and right parts of the bottom of the vehicle body; the wheels are mounted at the bottoms of the cushion blocks; the guide sleeve is arranged in the center of the lower wall of the vehicle body; the guide rod is arranged in the guide sleeve in a sleeved manner; the bottom end of the guide rod is connected with the pressing block. The ignored place flattening equipment for road building achieves an effect of flattening the places ignored by the compactor. The ignored place flattening equipment can flatten a pavement and also can adjust flattening force as required; in addition, the equipment is convenient to move and use, so that the places ignored by a road roller can be well flattened.