Based on the monitoring and evaluation system of Marine economic operation in Zhejiang Province over the years, the problems found in the operation process of the system were summarized and analyzed, such as the imperfect Marine economic background, the insufficient accuracy of monitoring data of ocean-related enterprises, the insufficient representativeness of accounting data and the insufficient intelligent management of Marine economic data.A series of targeted optimization measures taken in the development process of the system in recent years were sorted out, including dynamically updating the bottom of the Marine economy, increasing the frequency and level of Marine economic accounting, and improving the means of digital monitoring and governance. On this basis, three suggestions are put forward to improve the identification standards and methods of sea-related enterprises, improve the monitoring efficiency of sea-related enterprises, build a bridge of government and enterprise service, improve the statistical accounting mechanism and improve the statistical accounting method，providing ideas for systemically improving the Marine economic operation monitoring and evaluation business system，and providing references for Marine economic operation monitoring and evaluation , work across the country．