Abstract: Provided is a low air-permeable high-density woven fabric that is less likely to get wet even in the rain and needs only a short drying time after getting wet or being washed. The low air-permeable high-density woven fabric is obtained by applying water-repellent treatment to a woven fabric containing high twisted yarns with a twist coefficient of 5100 or more in a proportion of 50% or more of the surface area of the woven fabric and has a air-permeability of 50 cc/cm2/sec or less, a cover factor of 1500 or more, and a rub-resistant water repellency of 100 or more.