Application of the Digital City's technique in urban planning

The information techniques are infiltrating into the field of urban planning in every aspect,and the new concepts of urban design and management have been brought into urban planning in the informational and digital era.In the paper,the arising, meanings, function, characteristics and main techniques of Digital City are presented,and the application prospect of the Digital City's technique in urban planning are discussed. The effect of building up Digital City upon urban planning are also analyzed in terms of design concept and technique, and urban planning implementation and management.