Abstract: In view of the difficulties of exclamation and exploitation in the coastal area of Jiangsu Province, we discussed the method of spatio-temporal information integration for radial sand ridges based on marine spatio-temporal data model, and preliminarily applied quasi-synchronization to the spatial and temporal data management. A system involving ArcGIS secondary development and database programming is designed and developed as C/S and B/S structure on the development platform of MicroSoft.Net. The system consists of hydrological station management, drifting buoy tracer, retrieval of remote sensing information as key modules, and data source, data reorganization, database management, model base and business expression as layers, which together make up a fabric structure of interactive data query and management. The main function of this system includes data reorganization, model calculation, data analysis, spatio-temporal data receiving, result displaying and sharing. It provides data support and technical support for the reclamation exploitation and hydrological monitoring in radial sand ridge field.