Data broadcast has been accepted as an efficient way of data dissemination in the wireless mobile environment.With broadcast system,data is broadcast on the public downlink channel,Clients “listen” to that channel and download data that they are interested in.In this way,broadcasting one data item can satisfy all the pending queries which require that item.The system workload is independent of the clients number in the service range.As a result,one server can support numerous data access queries simultaneously. The access time,which means the time elapsed between the moment when a query is issued and the moment when this query is satisfied,is a critical metric to evaluate the broadcasting performance.Broadcast scheduling,which determines what to be broadcast and when,can greatly affect the access time,thus has received great attention form the research community for a long time.In this paper,we discuss about the scheduling method for data broadcast system with specially focus on schedu. ling for multi-item queries.