The invention provides a tunnel waterproofing and drainage system. The tunnel waterproofing and drainage system comprises an adhesive bonding tape, a self-adhesive cloth and adhesive bonding plates, the self-adhesive cloth comprises an adhesive dipping layer, a fiber cloth layer and a fiber looping layer from top to bottom, and fixedly installed on an initial supporting part of a tunnel through shoot nails, and the fiber looping layer faces towards the direction of the adhesive bonding tape; and the adhesive bonding tape comprises a base layer and a hook layer which are integrally formed, thehook layer is bonded to the fiber looping layer, and the side, away from the hook layer, of the base layer is bonded with the adhesive bonding plates through self-adhesives. According to the tunnel waterproofing and drainage system, the structure is reasonable, the hook surface of the adhesive bonding tape bonded with a waterproof plate, a drainage plate, or a waterproof and drainage plate is effectively bonded with the fiber looping layer of the self-adhesive cloth fixed to the tunnel supporting part, the purpose that the waterproof plate, the drainage plate, or the waterproof and drainage plate are installed on the inner wall of the tunnel is realized, and the advantages of fast installation, convenient replacement and high bonding strength are achieved.