The　Kunlun-Yellow　River　Movement　is　an　intense　tectonic　movement　at　the　boundary　between　Early　Pleistocene　to　Middle　Pleistocene.　The　movement　shaped　the　modern　tectonic　geomorphic　pattern　of　the　Tibetan　plateau.　The　age　of　the　Kunlun-Yellow　River　Movement　was　constrained　by　paleomagnetic,　ESR　and　TL　of　the　Yellow　River　terraces,　Qiangtang　Formation,　and　Wangkun　glacial　beds　in　Kunlun　Pass　area,　and　no　accurate　geochronological　constraints　have　reported　yet.　The　movement　resulted　in　a　regional　angle　unconformable　contact　between　the　Xiyu　conglomerate　(Xiyu　Formation)　and　Wusu　Group　in　the　Tarim　Basin.　Four　samples　were　collected　from　the　upper　part　of　the　Pulu　volcanic　rocks　overlying　the　Xiyu　conglomerate　(Xiyu　Formation)　in　the　southern　margin　of　Tarim　basin,　and　whole　rock　40Ar/39Ar　dating　analyses　were　carried　out.　The　dating　analyses　yielded　plateau　ages　of　1.03±0.05　Ma　to　1.20±0.05　Ma,　with　a　weighted　average　age　of　1.1±0.1　Ma　(n=4,　MSWD=2.3).　The　lower　age　limit　of　the　Kunlun-Yellow　River　Movement　is　accurately　confirmed　by　whole　rock　dating　of　40Ar/39Ar　for　the　first　time.　It　is　consistent　with　previous　results　of　the　lower　age　limit　of　the　movement　within　errors,　provides　new　geochronological　constraints　on　the　the　Kunlun-Yellow　River　Movement.　©　2017,　Science　Press.　All　right　reserved.