<;P>;PROBLEM TO BE SOLVED: To provide an air-permeable adhesive tape which has excellent air permeability, moisture permeability and anti-microbial property and can maintain a good adhesive force. <;P>;SOLUTION: This air-permeable adhesive tape having a substrate and an adhesive layer is characterized in that the substrate comprises a woven fabric or non-woven fabric subjected to a water-repelling processing and an anti-microbial processing, and the adhesive layer contains an anti-microbial agent. <;P>;COPYRIGHT: (C)2008,JPO&INPIT