Abstract: South to the Altun orogenic belt and north to bayankala faulted zone, the research area locates in the west of East Kunlun orogenic belt. In this paper, the authors studied Yaziquan-Yazidaban tectonic melange from perspectives of material composition and its features, trace elements and rare earth elements features in detail. The tectonic deformation characteristics were also expounded and analyzed. According to zircon SHRIMP U-Pb age and its unconformable contact with volcanic rock angle of Kalela formation of late Triassic, the mélange was found formed in carboniferous-Permian. Yaziquan-Yazidaban tectonic melange belt experienced multiphase, multisystem and multilayer tectonic deformations since Hercynian-Indosinian period. The paper also discussed the tectonic attributes of the research area. It is considered that the volcanic rocks formed in the island arc environment of plates' convergence and subduction, with its magma probably coming from partial melting of the mantle wedge and subduction area.