A pressure-sensitive adhesive sheet (1), which has a substrate (11) and a pressure-sensitive adhesive layer (12) and further has a plurality of through holes (2) formed from one surface to the other surface, wherein the through holes (2) have a hole diameter of 0.1 to 300 mum, and are formed in a hole density of 30 to 50,000 pieces/100 cm<2>, wherein the pressure-sensitive adhesive layer (12) exhibits a storage modulus of 4.5 x 10<3 >Pa or more (a highest temperature to which the layer may be exposed after pasted to an article) and a loss tangent at Tmax of 0.78 or less. The pressure-sensitiveadhesive sheet (1) can prevent or remove an air trap or a blister, without adversely affecting its appearance, while securing satisfactory adhesiveness, and further exhibits excellent capability of allowing air to escape, even when exposed to a high temperature after pasted to an article.