The file format will be transformed after the multimedia files are uploaded to the video and audio websites. It will need the software and hardware resources of the server to transform files. At the same time, it will bring down the quality of the videos and audios. In this article, a new universal architecture of multimedia online presentation was proposed. With this architecture, the multimedia files will not be transformed and ban be presented online. It is applied to the presentation of videos, audios, images, documents. The architecture is Real-Timing, high-quality, universal, adaptive and expandable.