Digital City is the trends with the development of city information technology. In support of information science, Digital City system develops fast, and has been applicated in a certain extent in the city's various departments. Chinese urban construction figures from the concept into practice step by step toward specific and application of the actual situation, however, the number of urban construction and development on the whole is still in the stage of exploration and practice, which have yet to be deepening understanding, experience has yet to be accumulation, methods have yet to be improved.
The purpose of Digital City building is to promote digital cities in information technology, to achieve convergence with the Digital Earth. Digital City building will not only promote the information industry and information city's economic development, urban development can be achieved with international standards, thereby enhancing the international city's comprehensive competitiveness.
This paper described the Digital City concept and framework, and analysised the number of urban construction at home and abroad. Based on this, the paper introduced digit city construction's each content and the digit urban construction's key technologies. At the same time, the paper designs the Ganzhou digit city information system, and has made the elaboration and the analysis to system's correlation data and the database development and the utilization. Finally the paper take Ganzhou as the object of study, has established platform model of the Ganzhou digit city information system.
Key words: Ganzhou City; Digital city; Information;