Abstract: Garnet-bearing basic granulites crop out near Gushan Town, the eastern end of the Khondalite Belt and just next to the Trans-North China Orogen. They occur as enclaves within sillimanite garnet gneisses and hypersthene monzonitic gneisses. Four metamorphic stages have been recognized on the basis of petrographic features and mineral compositions. The conventional thermobarometry and the calculated P-T pseudosections are used to determine the P-T conditions of different metamorphic stages. The early pre-peak metamorphic stage (M1) is represented by garnets' cores and their mineral inclusions, including clinopyroxene+plagioclase+quartz+ilmenite±rutile. The sodic cores of matrix plagioclases reveal that the highest metamorphic pressure could be over 11kbar. The peak metamorphic stage (M2) is documented by garnet+clinopyroxene+orthopyroxene+plagioclase+quartz+ilmenite, which formed at 850~900℃, 9~10kbar. Symplectites and coronas of clinopyroxene+orthopyroxene+amphibole+plagioclase±ilmenite surrounding garnet porphyroblasts imply a near-isothermal decompression retrograde stage (M3). The P-T conditions of pyroxene+plagioclase symplectites and coronas were yielded at 760~820℃, 5~8kbar. The occurrences of lower amphibolite-facies amphiboles suggest a late cooling stage (M4). The metamorphic temperature was lower than 690℃. These data define a clockwise P-T path with near-isothermal decompressional section for garnet-bearing basic granulites.Metamorphic zircons from the garnet-bearing basic granulites yield two groups of U-Pb ages, 1945±25Ma and 1828±36Ma, which are consistent with main metamorphic episodes recorded in the Khondalite Belt and the Trans-North China Orogen, respectively. The combination of metamorphic and geochronological data indicates that garnet-bearing basic granulites have possibly experienced two independent metamorphic events, suggesting that garnet-bearing basic granulites underwent initial crust thickening followed by the exhumation to some extent at ~1.95Ga caused by the collision between the Yinshan and Ordos blocks to form the Western Block, and that subsequently they were exhumed to the middle crust at ~1.85Ga caused by the collision between the Eastern and Western blocks of the North China Craton.