The present invention is a styrene block copolymer as a main component a polymer resin and by preparing the pressure-sensitive adhesive composition by the addition of such a tackifying resin and a viscosity control agent which imparts tackiness Here, the adhesive holding property and the discoloration resistance is excellent in the album to the pressure-sensitive adhesive for relates to an album to the hot-melt pressure-sensitive adhesive composition, characterized in that suitable for use, the pressure-sensitive adhesive performance is improved compared to conventional water-based latex pressure sensitive adhesive a pressure-sensitive adhesive, the properties such as discoloration resistance, excellent durability, and, as compared to solvent-based and water-based pressure-sensitive adhesive the drying time is very short, and the high speed automation of the pressure-sensitive adhesive and the production line can increase the productivity and economic, does not use a solvent, there is ecological advantages. Album to, hot melt, adhesive, discoloration resistance, styrene block copolymer-based resin