Form 2004, Shanghai has started the corresponding Science and technology support program for the construction of Chongming eco-island. With eight years of continuous special support, it has a series of noticeable effects. Facing the problem of asymmetry of Sci-techl information, inability to realize Sci-Tech data compilation and sharing, and slowness of transferring scientific achievement into productivity, to establish a Sci-tech information sharing platform is very important for realizing the technical swift communication and authentic sharing. This study elaborated the design and development of the platform, the establishment of the database, the visual query and browsing technique, application of WebGIS and platform safety strategy. The Sic-tech information sharing platform includes all Sic-tech projects of Chongming special fund and all corresponding key technology and results based on Web page. Meanwhile, it provides strong related search functions for different users. The platform has entered a practical using and comes into great effect gradually.