Abstract: he zircons LA-ICP-MS U-Pb dating of the spotted adamellite biotite granite from Bukesala and Suoerkuduke plutons in Shaerbulake, southern margin of Altay, was performed, yielding the 277.0±2.4Ma 206Pb/238U age in Bukesala ,and 280.9±4.3Ma 206Pb/238U age in Suoerkuduke, suggesting that their formation in the Early Permian. Geochemical characteristics indicate that the granite has a rich base, potassium, is a high-K calc-alkaline series, as with I-A and I-S transition characteristics of I-type granite, high content of REE (ΣREE to 184.68×10-6~221.49×10-6), LREE enrichment (LREE/HREE 4.52~8.45), marked negative Eu anomalies (δEu as 0.47-0.68), enriched in large ion lithophile elements, with Nb, Ta, Sr, P, Ti and other elements of negative anomalies. Combined with regional data, the rock formed in the collision of post-orogenic extensional tectonic setting are post-orogenic granite. The Early Permian granites in the post-orogenic context of decompression melting of mantle material upwelling of magma, crustal underplating in the newborn under the crust formed by melting of magma intrusion along the deep fault zone.