Abstract: The system goal, which is required to have unified standard in the respects of data format, data structure, use interface and user interface, is introduced in order to ensure data consistency and interchangeability. Thus the correlated systems of meteorological and non-meteorological departments can be received into a general frame which are connected and transferred with each other. And, the system structure is also described. It is a multiple data structure system with the geographically state-regional-provincial-prefectural levels climate database, but under the control of distributed database managing system. Logically, it is an entire database