The campus assistant project is based on the Android system development application project, and the Notification Message Module is an important module for the Campus Assistant Project. The Campus Assistant Project uses the thread reuse technology, accesses the network, and queries notification data in the service, thus reduces the expense of opening new thread, and enhances the resource efficiency. The notifications in the project are processed in the Android Service component. The Service Component opens thread to access the network. The data returned by the network is distributed with the Handler asynchronous message mechanism, and then the notification is send in the notification bar. The application of these techniques has a wide range of reference values for designing similar notification message mechanisms.