Hot　deformation　with　high　strain　rate　has　been　paid　more　attention　due　to　its　high　efficiency　and　low　cost,　however,　the　strain　rate　dependent　dynamic　recrystallization　(DRX)　and　texture　evolution　in　hot　deformation　process,　which　affect　the　formability　of　metals,　are　lack　of　study.　In　this　work,　the　DRX　behavior　and　texture　evolution　of　Mg-8Gd-1Er-0.5Zr　alloy　hot　compressed　with　strain　rates　of　0.1　s-1,　1　s-1,　10　s-1　and　50　s-1are　studied,　and　the　corresponding　dominant　mechanisms　for　DRX　and　texture　weakening　are　discussed.　Results　indicated　the　DRX　fraction　was　20%　and　the　whole　texture　intensity　was　16.89　MRD　when　the　strain　rate　was　0.1　s-1,　but　they　were　76%　and　6.55　MRD,　respectively,　when　the　strain　rate　increased　to　50　s-1.　The　increment　of　DRX　fraction　is　suggested　to　result　from　the　reduced　DRX　critical　strain　and　the　increased　dislocation　density　as　well　as　velocity,　while　the　weakened　whole　texture　is　attributed　to　the　increased　DRX　grains.　At　the　low　strain　rate　of　0.1　s-1,　discontinuous　DRX　(DDRX)　was　the　dominant,　but　the　whole　texture　was　controlled　by　the　deformed　grains　with　the　preferred　orientation　of　{0001}perpendicular　to　CD,　because　the　number　of　DDRX　grains　was　limited.　At　the　high　strain　rate　of　50　s-1,　continuous　DRX　(CDRX)　and　twin-induced　DRX　(TDRX)　were　promoted,　and　more　DRX　grains　resulted　in　orientation　randomization.　The　whole　texture　was　mainly　weakened　by　CDRX　and　TDRX　grains,　in　which　CDRX　plays　a　major　role.　The　results　of　present　work　are　significant　for　understanding　the　hot　workability　of　Mg-RE　alloys　with　a　high　strain　rate.　(c)　2023　Chongqing　University.　Publishing　services　provided　by　Elsevier　B.V.　on　behalf　of　KeAi　Communications　Co.　Ltd.　This　is　an　open　access　article　under　the　CC　BY-NC-ND　license　(　http://creativecommons.org/licenses/by-nc-nd/4.0/)　Peer　review　under　responsibility　of　Chongqing　University