The Panan Cu-Mo-W deposit is located in the Zedang ore field on the eastern section of the Gangdise metallogenic belt in Tibet. It has favorable geological conditions for hosting large-scale porphyry and skarn Cu-Mo-W mineralization. The short wave infrared spectrum mineral analyzer (BJKF-1) was applied to undertake the alteration mineral mapping at the Panan. Phyllic and propylitic alteration are identified at the surface, with locally developed argillic alteration which is clearly structurally controlled and is supergene. Based on the alteration zoning and the geochemical data, it is interpreted that the south-western part of the mapping area is very likely to be the centre of the porphyry mineralization.