On August 1, Hong Kong’s stablecoin regulatory regime officially took effect. The Hong Kong Monetary Authority released six documents establishing a comprehensive regulatory framework, addressing core areas including licensing thresholds, reserve asset requirements, private key management, Know Your Customer (KYC), and redemption mechanisms. This article presents an in-depth analysis of the “Guideline on Regulation of Licensed Stablecoin Issuers.” It explains the dual approach of rigorous oversight and adaptive flexibility, featuring stringent governance, detailed technical specifications, and support for innovation. Hong Kong, as a leading financial center, is setting a sustainable regulatory model for stablecoins on the global stage.