A method and an apparatus for managing content distribution over multiple terminal devices in collaborative media system are provided. In the collaborative media system, a first media data is transmitted over a first channel path to a first media terminal and a second media data relevant to the first media data is transmitted over a second channel to a second media terminal. The method comprises: detecting a quality of the first media data on the first channel path and that of the second media data on the second channel path; upon detection the quality of the first media data being lower than a first predetermined value and that of the second media data being greater than a second predetermined value, transmitting the second media data over the second channel path, instead of the first media data over the first channel path, to the first media terminal (S204).