A cooling sheet comprising: a backing layer; an adhesive agent layer; and a liner layer for protecting the adhesive agent layer, wherein the adhesive agent layer contains water at 65 to 85% by mass based on a total mass of the adhesive agent layer, polyalkylene glycol monooleate at 0.12 to 0.7% by mass based on the total mass of the adhesive agent layer, polyvinyl alcohol at 3 to 10% by mass based on the total mass of the adhesive agent layer, polyacrylic acid at 0.5 to 5% by mass based on the total mass of the adhesive agent layer, and a parahydroxybenzoate at 0.01 to 1% by mass based on the total mass of the adhesive agent layer, and a mass ratio of a content of the polyvinyl alcohol to a content of the polyacrylic acid is in a range of 1.2:1 to 5:1.