Adaptive media streaming transmission method and apparatus for multi network environment

Disclosed is a method and device for transmitting multi-network environment adaptive media streaming. The method for transmitting media streaming according to one embodiment of the present invention comprises the steps of generating media data by encoding certain content to multiple hierarchies; separating the generated media data by each hierarchy; and streaming-transmitting, to a media receiving device, the media data separated by each hierarchy through multiple networks. [Reference numerals] (10) Media transmitting device;(14) Medial receiving device;(AA) Sub IP network n;(BB) Sub IP network 1;(CC) Main IP network