The invention relates to a flow media bandwidth adapting
system, which comprises flow
server, media provider, and
mobile device, wherein the flow
server comprises
server flow protocol module, bandwidth analyzing module, bandwidth selecting module, document analyzing module and media sending module; the
mobile device comprises terminal flow protocol module,
wireless module, bandwidth detecting module, buffer module and play module; the
mobile device via
wireless module and bandwidth detecting module timely reports received bandwidth state and media receiving state to the server flow protocol module; the server flow protocol module sends said information to the bandwidth analyzing module to find the media bandwidth and sending speed, to be sent by the media sending module. The invention can automatically adjust the sending speed and code bandwidth of media document via the network state and media receiving state, to improve relative play effect.