Abstract: Several structural domes in Lhagoi Kangri,southern Tibet,show the three-layer structure typi-cal of metamorphic core complexes.The metamorphic cores consist of metamorphic complex rocks of the Lhagoi Kangri Group-complex and granites intruded therein;multi-layer,layering-parallel detachment faults are distributed around the metamorphic cores.The covers mainly include Late Paleozoic-Mesozoic low-grade metamorphic rocks.The Lhagoi Kangri metamorphic core complexes have close temporal-spatial relation to the high Himalayan metamorphic core complexes and the southern Tibetan detachment system and are the result of thermal uplift and extension during the late Cenozoic Himalayan orogeny and its re-lated uplifting.