The object of the invention is to provide a pressure-sensitive adhesive sheet for identification, which is obtained by easy thick film coating in formation of a pressure-sensitive adhesive agent layer； which can be used even if the surface of a collection subject is wet with moisture； which is obtained without using an organic solvent in production steps； and which causes few damages on the surface of the collection subject, and a production method thereof. There is provided a pressure-sensitive adhesive sheet for identification which is used by transferring and taking a trace visualized onto a surface of a pressure-sensitive adhesive agent layer, the pressure-sensitive adhesive agent layer being formed by photoirradiation of a layer made of an acryl-based pressure-sensitive adhesive agent composition containing a) a (meth)acrylic acid alkyl ester in which an alkyl group has 1 to 14 carbon atoms on average, as a main monomer, b) a polyfunctional (meth)acrylate and c) a photoinitiator, the pressure-sensitive adhesive agent layer having a gel fraction of 50% by weight or more, the pressure-sensitive adhesive agent layer having an adhesive strength to a stainless steel plate of 0.1 to 2.0 N/20 mm.
