简要介绍了多媒体通信的基本概念、主要特点和业务应用；剖析了几种关键技术；并结合我国公众多媒体通信网的现状，指出发展多媒体通信势在必行。 The basic concepts, main features and business applications of multimedia communication are briefly introduced. Several key technologies are analyzed. Combined with the status quo of public multimedia communication network in our country, it is pointed out that it is imperative to develop multimedia communication.