Low-adhesiveness foam sheet

A foam sheet is provided which is extremely thin and exhibits excellent shock absorption. This foam sheet is configured from a foam body which has a thickness of 30-500 µm, an apparent density of 0.2-0.7 g/cm 3 , and an average cell diameter of 10-150 µm. In shock absorption tests using a pendulum impact tester, the value R obtained by dividing the shock absorption rate (%) defined in the specification, by the thickness (μm) of the foam sheet is 0.20 or greater given an impactor weight of 28g and a swing-up angle of 40°, and it holds of at least one surface of the foam sheet that in a 23°C environment, when pressing a cylindrical probe having a diameter φ of 5 mm and made of SUS 304 against said at least one surface with the conditions of a pressing speed of 30 mm/min, a pressing load of 100 gf, and a pressing time of 1 second, and separating said probe therefrom at a separation speed of 30 mm/min, the maximum load value is less than or equal to 100 kN/m 2 .