Ripple USD (RLUSD) is a stablecoin developed by Ripple Labs, aiming to provide efficient, transparent, and reliable payment solutions through blockchain technology. RLUSD is originally issued on the XRP ledger and the Ethereum blockchain, fully backed by independent cash and cash equivalents, and can maintain a fixed value of 1:1 with the US dollar. It not only solves the volatility problem in the cryptocurrency market, but also demonstrates wide potential applications in areas such as payments, remittances, and exchanges.