During the Late Triassic- Early Jurassic, the Cimmerian, Cathaysian and Eurasian continents in the Tethys domain on the eastern side of the Pangea super- continent collided and formed the 4000 km- long Cimmeride orogenic belt. The Songpan- Ganze terrane in the northern part of Tibet Plateau, was located among these three continents. The orogenic properties of the Songpan- Ganze terrane are of great significance to understand the genesis of the Songpan- Ganze “lithium deposit chain”. The unconformable Early Jurassic continental volcanic rocks, the basal conglomerates and the coal- bearing strata (~201 Ma) in the western and northern Songpan- Ganze terrane settled on the Late Triassic folded sediments and granites, providing the direct evidence for the timing of the Cimmeride orogeny. The rare metal ore deposits in Songpan- Ganze terrane, such as Jiajika, Keeryin, Zhawulong and Bailongshan share the same characteristics: The ore deposits are hosted in gneiss dome that is composed of the highly differentiated S- type granites in the core and the Upper Triassic turbidites in the mantle, which have experienced Barrovian- Buchan metamorphism, and lithium- rich pegmatites are emplaced in the extensive spaces above the granites. Based on the regional geological survey of the Songpan- Ganze terrane and the study of metamorphism, deformation, magmatism and metallogenic processes and isotopic chronology of the ore deposits, it is proposed that this terrane has undergone the Late Triassic to Early Middle Jurassic Cimmeride orogenic process: ① 230~220 Ma: the crust shortening and thickening stage is characterized by the intensive large- scale folding and thrusts, as well as top- to- the- south decollement between the sedimentary covers and the Neoproterozoic basement. This stage is also characterized by anatexis and Barrovian metamorphism; ② 220~190 Ma: during the crustal decompression and exhumation stage, a large number of granites emplaced in the Late Triassic turbidites, forming gneiss domes accompanied with Buchan metamorphism. Due to high- degree differentiation and liquid immiscibility of the granitic magma, the rare metal- rich pegmatites had emplaced in the extensive spaces on top of gneiss domes. In addition, The Jiajika Scientific Drilling reveal the metallogenic mechanism of the lithium- bearing pegmatite veins controlled by the domal granitic sheets. It is speculated that the magma rising was driven by large- scale melting in the middle and lower crust. The granitic sheets were formed by thrusts along structural planes in the upper crust.