Abstract: Building the spatial data model and designing the structure of the database are the two relatively important parts in GIS database design.Object-oriented integrity data model and object-oriented semantic data model are two new models usually used in database design.They are focused on two different aspects of GIS database design but share the same principle in abstracting the object of the basic spatial entity.Based on this character of these two models,an analysis mode for GIS database design called two-order analysis mode is introduced in this paper.The two-order analysis mode can be used for the whole process of the GIS database design,including building data model and designing the structure of database.A practical design in the land use and real estate management system is analyzed as an example to testify the feasibility of the mode.