The summary has introduced CALIS and thematic database establishment,have expounded the fact that builds the choice question of the management software of the storehouse,collection question,index question,data security and the copyright protection,follow-up question of database establishment.

This paper probes into the feasibility of carrying out the innovation from aspects of constructing the characteristic thematic database,establishing the documentation centre serving the government s policy-making,and realizing the resources sharing.

The establishment of Internet subject databases is one of the key contents of digital library.

This paper has analyzed the importance of the construction of Qinghai-Tibet Plateau railway special database,studied four key ingredients(data collection,database framework,literature bibliography and index) of the special database,and put forward suggestions and method in Qinghai-Tibet plateau railway special database construction.

This article puts forward the function of"database sharing,mutual communion"in personal digital library,and through the function,it expounds the mutualbuild feasibility between special database and personal digital library.

Starting from the construction practice of special database for fire science,this paper expounds the contents of database construction and the concrete implementing procedures,and advances some suggestions on the subsequent construction of the database.