The utility model discloses an oil-level bolt used on a vibrating wheel of a vibrating road roller. The oil-level bolt comprises a base body (1) and a bulge (5), wherein one end of the base body is fixedly connected with the bulge; an axial blind hole (2) is arranged at the central part of the bulge; threads are arranged on the outer surface of the bulge. The oil-level bolt also comprises a magnet (3) which is arranged in the blind hole, wherein a gap is arranged on the outer surface of the bulge. The oil-level bolt disclosed by the utility model has the beneficial effects that the magnet is arranged in the blind hole of the oil-level bolt, the gap is arranged on the outer surface of the bulge, and the magnet in the blind hole can attract impurities such as iron rust in an exciting chamber continuously, so that the cleanliness in the exciting chamber is improved, and the use environment of a vibrating bearing is guaranteed; when oil is added in the maintenance process, the added amount of lubricating oil can be judged by observing the oil in the gap only after the base body is unscrewed till the bulge is exposed; since the gap is exposed and is not easily blocked by dirt, the added amount of the lubricating oil is effectively guaranteed and the service life of the bearing is prolonged.