RWA (Real-World Assets) is an important sector in blockchain and decentralized finance (DeFi), utilizing tokenization technology to integrate real-world assets into the crypto ecosystem. This provides a bridge between traditional finance and DeFi. This article explores the origins, development, and diverse applications of RWA, including real estate, stablecoins, lending markets, bonds, and securities. It also analyzes the rapid growth of the RWA market and the crucial roles and technological frameworks of projects such as Centrifuge, ONDO Finance, and BlackRock BUIDL in the RWA ecosystem.