An embodiment of the invention relates to the network technology field and discloses a media data transmission method and an apparatus thereof. The method comprises the following steps of acquiring a network parameter used for expressing a current network state; according to the network parameter, determining a packet loss type of a current network, wherein the packet loss type includes a congestion packet loss or a random link packet loss; and based on the packet loss type, adjusting a transmission mode of current network streaming media data. In the invention, for the different packet loss types, different streaming media data transmission mode adjusting can be performed, a high data throughput rate is guaranteed and transmission quality of the streaming media data is increased.