Establishing database of marine stations real-time monitoring provides data support for marine environment forecasting sectors. According requirements of marine stations observation database, design and implement marine stations realtime monitoring database management system. Introduce the main method and technique of database construction. According respective characteristics of the marine monitoring elements, generate standard data interchange formats. Original monitoring data received by National Marine Environmental Forecasting Center was stored in the specified directory by a fixed name after quality controlling. Then real-time warehousing application and transferor application run without human interaction. Data are input into the database and simulation experiment shows that it is adaptive to the requirements of data quick update and query.