Abstract: The ship's maintenance management system is used for orderly management of the ship's affairs, including monitoring the ship's equipment, arranging equipment maintenance information, arranging the crew's work, recording the storage of spare parts and materials, etc. at the same time, it can process the communication information between the ship end and the shore end. This paper designed a new B/S architecture of the maintenance management system Web App. We used the popular front-end and back-end separation development mode and non-relational data storage scheme in recent years, learned from the interactive design mode of native App, and redivided the business module. Through this method, the ship shore business was more decoupled, the communication was faster, the data traffic was reduced, the operation cost was reduced for the ship owner, and the accuracy of real-time data transmission was improved.