A media streaming method and a device using the same are introduced herein. The disclosure introduces a method for smooth and flawless playback of live media streaming in dynamic network environment. When network congestion occurs for a period, a media receiver may play media data as more as possible by adjusting the transmission order of media data meaningful to the receiver or a provider for providing the media data. In one embodiment, the disclosure introduces a method for smooth and flawless playback of live media streaming by caching a certain amount of media data and then playing them at an appropriate speed to catch up to the progress of the live media streaming, or by dynamically changing bit rates of the live media streaming in time by the provider to meet the most acceptable bit rate according to the network environment between the provider and the receiver.