Styrenic thermoplastic elastomer (TPS) is used for a broad range of applications because of its functions and performances. Its block-copolymer structure combines the properties of the hard-segment blocks and the soft-segment blocks, resulting in ease of processing and excellent performance characteristics. This paper introduces typical application concepts and solutions of TPS based on actual examples of our styrene-butadiene-styrene block copolymer (SBS) and styrene-ethylene-butylene-styrene block copolymer (SEBS). Especially, we focus on applications for adhesives, asphalt modifiers, resin modifiers, damping materials.