Mars Ecosystem is a new decentralized stablecoin paradigm, it integrates the creation and use of stablecoin into the same system. Mars Ecosystem consists of three parts: Mars Treasury, Mars Stablecoin and Mars DeFi protocols, which together form a positive feedback loop. Mars stablecoin is price-stable, capital-efficient, scalable and decentralized. The goal of Mars Ecosystem is to build the central bank and reserve currency of the DeFi world.