The anti-slip mat includes a covering layer and a structural layer. The covering layer is formed with a plurality of apertures. The structural layer has a predetermined thickness and has a plurality of through holes extending vertically. The covering layer is disposed on a top face of the structural layer. The apertures communicate the through holes. The structural layer is weaved by a water-proofing fiber to form a three-dimensional structure. Each aperture has an internal diameter smaller than an internal diameter of each through hole.