A sealing tape that overcomes a practical restriction such that a knit must be used on the surface of sealing tape at use in fiber products obtained by sewing or fusion bonding of a fiber laminate, and that without detriment to appearance and tactile sensation, excels in durability and realizes lightweight, thickness reduction and high comfort. There is provided a sealing tape having a substrate film, a woven fabric superimposed on one major surface of the substrate film and an adhesive layer superimposed on the other major surface of the substrate film, characterized in that the sum of cover factors calculated with respect to each of the warp and weft constituting the woven fabric, CFtotal, is in the range of 500 to 1400. CFtotal = CFm + CFt CFm: warp cover factor, and CFt: weft cover factor.