This article—“The Research and Development of the Information System for City Planning and ConstructionManagement of Suzhou City”was written to expand the scope of research and to strengthen management and controlso as to provide a basis for policy-making,to bring both in-denth analysis and to combine qualitative and quantita-tive determination.The article introduces the basic structure and functions of the information system,including theinformation flow,division of sub-systems,hardware-model selection,the content of data base and their classifica-tion and coding,etc.The article also introduces the functions of treatment of graphic information,word numericalvalue information and its uniqueness in combining graphical and non-graphical information.This information sys-tem is comparatively low cost simple in operation,and there is a basic guarantee of source of information.A pre-limirary use of the system has proved its practivability,which forms the basic condition for the extended applicationof the system. This article—“The Research and Development of the Information System for City Planning and Construction Management of Suzhou City” was written to expand the scope of research and to strengthen management and controlso as to provide a basis for policy-making, to bring both in- Denth analysis and to combine qualitative and quantita-tive determination.The article introduces the basic structure and functions of the information system, including theinformation flow, division of sub-systems, hardware-model selection, the content of data base and their classifica-tion And coding,etc.The article also is the functions of treatment of graphic information,word numerical value information and its uniqueness in combining graphical and non-graphical information.This information sys-tem is comparatively low cost simple in operation,and there is a basic Guarantee of source of information.A pre-limirary use of the system has safety its practivability, which forms the basic condition for the extende d applicationof the system.