Abstarct: Dalli Cu-Au prospect is located about 60 km NE of Arak town. It is the first known Cu-Au porphyry deposit in Urumieh-Dokhtar magmatic arc. The Dalli area is covered by mineralized hosted intrusive diorite and andesite porphyry. Some of these rocks are altered to potassic, propylitic, silica, phyllic and argillic alterations. There are two separate mineralized porphyry centers (South Hill and North Hill) at Dalli area. In this research, initially an exploration databaxse of the Dalli area was constructed from all data sources including remotely-sensed and geological data. False color composite (RGB), Matched filter and LS-Fit are the principal enhancement methods applied on Aster and TM data of the Dalli area to map various hydrothermal alterations related to Cu-Au porphyry mineralization. Different alterations such as argillic, phyllic, iron oxide, propylitic and silicification were identified from processed satellite data and then reformatted as a separate laxyers in a GIS model. All lithological units were digitized from Salafchegan-Khorhe geologic map (1:100000 scale). Structural controls (faults and lineaments) were mapped using processed IKONOS satellite data. For optimization usage of structures in an integrated model, lineament density map of major faults was prepared. In the next stage, an integrated analysis of different exploration laxyers was used by Fuzzy Logic method in a GIS environment to map and prioritize high potential areas of Cu-Au mineralization for further exploration. Two location of the the high potential areas were checked and sampled in the field. The field visit and the analytical results of the collected samples confirmed the presence Cu-Au mineralization.