Abstract: Acrylic pressure-sensitive adhesive including an acrylic copolymer formed by copolymerizing: i) 81 to 96% by weight of an alkyl (meth) acrylic acid ester monomer having a carbon number of an alkyl group of 2 to 14; ii) 1 to 10% by weight of at least one monomer selected from the group consisting of an allyl ester, a vinyl ester and an unsaturated acetate; iii) 1 to 10% by weight of an acrylonitrile monomer; and iv) 0.1 to 2% by weight of a crosslinker including 5 to 15 of an alkylene oxide group, and having two or more groups of an acrylate group, a vinyl group or the combination thereof, and a surface finishing material comprising the same, which is environmentally friendly, has an excellent room temperature and an aging adhesive property, and has an excellent constructability.