As　one　of　the　most　popular　solutions　to　enable　efficient　multimedia　service　data　delivery,　transmission　control　protocol　(TCP)　friendly　rate　control　(TFRC)　protocol　is　capable　of　smoothly　adjusting　the　throughput　to　avoid　congestions　based　on　the　environment　of　the　networks.　However,　the　performance　of　TFRC　in　satellite　networks　degrades　seriously.　This　is　mainly　because　the　low　signal-to-noise　ratio　(SNR)　of　the　wireless　links　results　in　serious　packet　loss　rate,　and　the　TFRC　cannot　precisely　separate　the　two　reasons　of　the　packet　loss,　network　congestions　and　wireless　link　errors.　In　this　paper,　we　propose　the　TFRC　with　environment　adaptation　(TFRC-EA)　as　an　extension　to　the　traditional　TFRC　protocol.　In　TFRC-EA,　by　analyzing　the　network　status　based　on　the　communication　parameters　such　as　link　length　and　wavelength,　the　receiver　calculates　the　expected　packet　loss　rate,　and　send　the　result　to　the　sender　as　the　feedback.　The　throughput　model　is　improved　in　TFRC-EA,　enabling　the　more　accurate　transmission　rate　adjusting.　Simulation　results　show　that　TFRC-EA　significantly　increases　the　throughput　compared　with　the　original　TFRC　and　TCP,　and　reduces　the　delay　jitter　of　the　data　stream.　©　2019　IEEE.