An object of the present invention is to provide an adhesive skin patch which can suppress elongation of the skin, excellent in followability to the skin, is capable of being adhered for a long time for covering wound or for protecting post-surgical wound, in particular, an adhesive skin patch for healing wounds, for treating scars or for preventing formation of scars and keloids. It is also an object of the present invention to provide a support layer for an adhesive skin patch which is suitable for making the above-mentioned adhesive skin patch.The present invention is directed to an adhesive skin patch for covering wound or for protecting post-surgical wound, which comprises a support layer and a pressure-sensitive adhesive layer provided on one surface of the above-mentioned support layer, wherein a 1% tensile load of the above-mentioned adhesive skin patch in a machine direction and a cross machine direction of 13 N/25 mm or less, and a 10% tensile load of the same of 18 N/25 mm or more and 95 N/25 mm or less.