For trading platforms, the trading system is the foundation of everything, and system performance is the basis for determining the customer experience. As more and more investors of all types enter the digital contract trading market, both the frequency of trading and the complexity of trading strategies have increased significantly. This is a stage where the platform can compete against hard power. Bityard's self-developed high-speed transaction matching engine is programmed using KDB + language. It is a tool set frequently used by major banks in high-frequency trading programs.