The invention discloses a client-side video playing system and the method thereof. The system comprises a system initialization module used for initializing the system to display a client-side interface; a channel clicking module used for transmitting URL to a Windows media player control after clicking the channel; a Windows media player control used for sending the transmitted URL from the channel clicking module to a playing plug-in module and playing the data of the clicked channel; the playing plug-in module used for communicating with the local process module; and a local process moduleused for communicating with the playing plug-in module to download corresponding data from the network for playing the Windows media player control. The invention can download data not only from a server, but also from the connected client-side, thereby, the transmitting pressure is lightened. In addition, files or web sites of self-defining and taking TL as suffix are also supported, therefore to ensure the experience of users to be better.