Mdex is an automatic market-making decentralized exchange based on the concept of fund pools. It is similar in function to some DEXs on the market, but on this basis, it proposes and implements a dual-chain DEX model based on the Huobi Eco Chain and Ethereum . It combines the advantages of the low transaction fees of the Huobi Eco Chain and the prosperity of the Ethereum ecosystem, and supports the dual mining mechanism of liquidity and transactions.