Abstract: Describes a method to integrate CIS and MIS. It is based on three tiers Client/Server hierarchy and uses SDE(Spatial database Engine) to spatialize Oracle Database so as to put GIS spatial data into relational database. It makes the data which, stored in forms of file in the Arc/Info, so that the database can be transferred into Oracle relational database which can manage the extremely large number of graphic data. VB as developing environment and load MapObject as a component are selected. Utilizing part of MIS data in SQL Server, developed an advanced city planning MIS with the combination of Graphic and Script.