With the implementation of Hong Kong’s stablecoin regulations, this article provides a comprehensive analysis of how the dual-track approach—combining Digital Renminbi and offshore Renminbi stablecoins—advances Renminbi internationalization. Using the metaphor of a financial system as a tree with roots, trunk, and leaves, this article systematically explores on-chain settlement in the Shanghai Free Trade Zone, the global distribution mechanism for Hong Kong’s CNHC stablecoin, and the technical frameworks and risk management for central bank regulation, on-chain transparency, and cross-border payment efficiency. It is ideal for readers interested in stablecoin policy, Renminbi internationalization, and fintech innovation.