The Short Message Service (SMS), as defined within GSM standard, delivers messages to GSM users in store and forward method. Since mobile phones displaying Chinese character are geffing more widespread and easier to use, sending short messages have gradually become as one of the most popular communication services among people, especially teenagers. The short message broadcast system, which is developed by Chunghwa Telecommunication Laboratories, provides the service of broadcasting short messages. The system user can simultaneously send short messages to more than one mobile phones belonged to one or more groups. In this paper, we will introduce service features, functions, architecture, and application status.