Counter flow cooling tower inlets air from four sides. The air in the cavity interchanaged heat with the hot water depends on the draught fan in the top and with the damp and hot air ejected from the tower. The padding has S wave plast with salient point in two sides. Through the top install, cohere the wave plate together in oder to reinforce rigidity, and also avoid driping directoy in the salient point. Therefore, form ability of water film be enhanced.