The invention relates to a spreading plain bumper for concrete pouring. The spreading plain bumper for concrete pouring comprises a compaction box, a compaction motor, a compaction device and a spreading mechanism. The compaction motor is mounted in the compaction box, the compaction device is mounted on the front end face of the compaction box, the spreading mechanism is mounted at the lower endsof the left inner side wall and the right inner side wall of the compaction device, the compaction device comprises a compaction mounting frame, and through holes are formed in the left inner side face and the right inner side face of the compaction mounting frame. A compaction connecting plate is mounted in the through holes in a sliding fit mode, round holes are formed in the compaction connecting plate, and vibration motors are evenly mounted on the upper end face of the compaction connecting plate. According to the spreading plain bumper, the problems that in the concrete pouring process,a vibration rod is not perpendicular when inserted into concrete, inserting is too slow, pulling out is too fast, the compaction effect is poor, the procedures are tedious, and the work efficiency islow can be solved, the function of automatically compacting and spreading the concrete can be achieved, and the advantages that the procedures are simple, the compaction process meets the process requirement, the compaction effect is good, and the work efficiency is high are achieved.