Disclosed is an adhesive sheet wherein at least a polyester base film (A), a crosslinked silicone rubber adhesive layer (B) having a polydimethylsiloxane skeleton, a releasing layer (C) and a polyester film (D) are laminated in this order through or not through another layer. This adhesive sheet is characterized in that when the hot water adhesion resistance is evaluated by the method defined in the description, the silicone rubber adhesive layer (B) is not separated from the polyester base film (A), and the peel strength between the silicone rubber adhesive layer (B) and the releasing layer (C) is within the range of 0.03-1.0 N/20 mm.