ADHESIVE TAPE

Provided is a pressure-sensitive adhesive tape excellent in unevenness followability. The pressure-sensitive adhesive tape of the present invention includes: a base material layer; and a pressure-sensitive adhesive layer arranged on at least one side of the base material layer, wherein the pressure-sensitive adhesive tape has a dimensional change ratio at 23° C. and 50% RH of from −0.39 to −0.20, provided that the dimensional change ratio at 23° C. and 50% RH is calculated in accordance with a predetermined equation by: cutting the pressure-sensitive adhesive tape into a belt shape having a width of 20 mm to produce a measurement sample; and tensioning the measurement sample under an environment at 23° C. and 50% RH with a tensile tester at an initial chuck-to-chuck distance set to 20 mm and a tensile rate of 300 mm/min in a longitudinal direction of the measurement sample so that a deformation amount thereof becomes 100%.