Due to the new requirements of post-launch calibration, the global calibration-site network database is developed by Oracle 10g and Visual C++. Key technologies including database architecture, multi-source data processing, access control model and database optimization are considered. 103 optical calibration sites between 72°N and 75°S are selected. There are 15 kinds of site types and 7 types of site parameters. The approaches to achieving some parameters are given. The range of site reflectivity is between 0.01 and 0.90. These sites are suitable for post-launch calibration of solar reflective bands. The database has the fundamental functions of management, query, maintenance and application. Finally, the application methods of site data are introduced.