Abstract: In order to meet the needs of real-time communication and remote control of unmanned surface vessel (USV), a kind of monitoring system on USV is designed by using computer, sensor and wireless communication technology, which realizes the real-time monitoring, control and real-time communication of USV. A dual drive independent control scheme was designed to realize the separation of remote control and computer control of USV, which could improve the safety and reliability of USV operation and control. A plug-in software architecture was proposed to dynamically load the changeable functional modules into the system framework in the form of plug-ins, which speeded up the development speed, reduced the coupling degree of the system, and improved the scalability of the system. By using the dynamic loading and unloading method of plug-ins, the dynamic loading and online upgrading of plug-in functions were realized, and the ability of the system to cope with the diversification of tasks was improved.