Recent geochemistry researches show that significant variations in copper isotope composition occur in different geological and metallogenic environments.Because of the regularity of copper isotope variations in copper ore deposits,copper isotopes a new tracer that can be applied in archaeological provenance studies.This research briefly introduces the progress in copper isotope geochemistry,analytical technique for copper isotope analysis and their application to archaeology.Although copper isotope geochemistry is still in its formative stage and the variation of copper isotope in nature is very complicated,the application of copper isotope analyses to provenance studies of artifacts made from copper ore shows bright prospects.Copper isotope technique will play a more important role with the advance of copper isotope geochemistry and analytical techniques.