The external liaison platform standardizes the non standardized interfaces of production systems such as HIS and LIS, enabling unified access, centralized control, integrated development, and platform deployment of multiple businesses. It is an information hub for hospital external information exchange and interface adaptation, an intermediate layer connecting various businesses of the hospital, and serves as a unified outlet for hospital external liaison business, realizing the docking of various business interfaces. Support customization of external plugins and provide plugin development toolkits, allowing hospital information department personnel to develop plugins on their own when needed.