The feature is an essential element that comprises spatio-temporal data information and the event is a fundamental factor that result in changing spatio-temporal data.Basing on analyzing several existing Spatio-temporal Data Model

this paper introduces a new Spatio-temporal Data Model based on feature and event double mechanisms.The character of spatio-temporal data changing is analyzed.And how to organize data

build relations between features and storage data in spatio-temporal database are also emphatically discussed.At last

a software package of dynamic land use information system based on above model and methods are introduced.Its running network environment is Windows NT Server 2000 and client is Windows workstation 4.0/2k/xp professional operation systems.Another important technology used in dynamic land use information system is a self-developed Attribute Database Engine（Dblink） combined with Spatial Database Engine（SDE）.It is proven efficient in realizing the query and retrospect of the history information during system’s operating.