The invention belongs to the technical field of road and bridge construction, and particularly relates to an efficient reminding device special for the road and bridge construction. Aiming to attract the attention of people, improve the reminding effect and enable dangerous accidents not to happen easily through sway of reminding boards, in order to solve the technical problem, the efficient reminding device special for the road and bridge construction is provided. The efficient reminding device special for the road and bridge construction comprises brackets and the like, wherein the brackets are arranged vertically in bilateral symmetry, and a roof is horizontally installed at the tops of the two brackets in a bolt joint mode; hanging ropes are arranged symmetrically about the middle of the bottoms of the tops, and the bottom end of each hanging ropes is tied with a hanger provided with a hanging ring; the hanging rings are welded with the reminding boards, and the upper portion of the right side surface of the right bracket is provided with a driving device. According to the efficient reminding device special for the road and bridge construction, the effects of attracting the attention of people, improving the reminding effect and enabling dangerous accidents not to happen easily through sway of reminding boards are achieved.