Abstract: Granite across the thrust fold zone of the Lancang River in western Yunnan Province is generally termed as Lincang granite, it extends 500km near SN with an average width of 25km only, being extensively compressed by orogenic movement.Licang granite has obvious thrust fault, well developed thrust-imbricate structure and large-scale nappe.The thrust fault of east edge of the leading imbricate fan is the biggest in the Lancang River Thrust Fold Zone.Granite divided into two massive rock sheets by the middle thrust fault formed imbricate structure.There are many klippen and thrust rock sheets in the north of Fenqing county and Changning county.The direction of rock sheets thrusts and klippen transported are generally from west to east.Granite of the thrust fault roof of east edge slipping 30 to 80km towards east.Cataclasitic rock and mylonite grew along the thrust fault.Iochroits which were pulled into pieces often can be found in mylonite among the thrust rock sheets.The thrust-imbricate structure and the nappe structure were mainly formed is from end of Paleozoic to Cenozoic, more than 200 Ma.Isotopic ages of the mylonite are 179 Ma, 149Ma, 15.4Ma and 25.6Ma.During later period of the thrust and nappe along the thrust fault near SN strike-slip fault and the NE or NW shear fault occurred.