The invention discloses an anti-floating water weight warning board placing rack, the structure comprises a warning board, a fixing bracket, a base having a circular structure, a fixing bracket is vertically installed in the middle of the bottom of the base, a war board is arranged on that top of the fixing bracket, the warning signs are fixedly joined to the fixing brackets, the base is composedof a cone-fixing structure, a water tank, an annular groove body, a water guiding plate and a connecting end. The annular groove body has an annular water tank, and the annular groove body is internally provided with a hollow round table formed by two or more water guiding plates. The invention mainly adopts the cooperation of the cone-fixing structure, the drainage system and the annular groove body, and uses the water weight to increase the stability of the base in rainy weather, avoiding the occurrence of floating and lodging, and the invention is applicable to the uneven construction road..