Objectives: Kangdian area is famous for Cu—Fe deposits hosted in Proterozoic basements, Magmatic rocks and complicated geological evolution. Much research has been carried out from last century, however, confused isotopic dating data arouse bitter controversy on tectonic setting, magmatism, and metallogenesis etc. The most important tectonic—magmatic—mineralization events, i.e. Kunyan rift in PaleoMesoprotorozoic is summarized systematically in this paper. Results:he basement PreKunyang rift is the few Tangdan group strata in Dongchuan and central Yunnan province, which have more obvious deformation than Dongchuan group, being coursed by the Dongchuan movement before 1.8 Ga. The magmatic system of Kunyang period include mainly plenty of basic intrusive rocks distributing along Dongchuan—Huili —central Yunnan, and secondly few ultrabasic rocks, metabasic vocanic rocks and intermediate —acid rocks, which has the typical characteristics of bimodal magmatic rock combination. The UPb ages for zircons of these magmatic rocks are from 1800 Ma to 1450 Ma, clustering together in 1650~1750 Ma, which reflect that Kunyang rift lasted for 0.4 billion, and peaked for 0.1 billion. The basic magmatic rocks geochemistry of Kunyang period have the geochemical characteristics of intracontinental basalts, and the diabases in Wuding area in central Yunnan and metabasic vocanic rocks possess the characteristic of ocean island basalt(OIB), such as high alkaline, TiO2, P2O5 contents, low CaO/TiO2, Al2O3/TiO2 ratios, no highfieldstrengthelements(HFSEs) depletion, relatively high ［n(87Sr)/n(86Sr)］i initial ratio and εNd(t) value. According the lithological association and geochemistry of the magmatic rocks, we propose that it was an intracontinental rift extensional event which was course by mantle plume activities, i.e. Kunyang mantle plume. The Kunyang intracontinental rift grew into limited small ocean basin at about 1450 Ma in Huili—Dongchuan area, and closed in late Mesoproterozoic. The sedimentary system of Kunyang rift were composed mainly of Dongchuan group, Hekou group and Dahongshan Group, probably extending to Liwu group in northern Kangdian area. The different lithological association of each group might be related to the tectonic location which resulted in the difference of sedimentary facies. It was an important metallogenesis event for Kunyang rift, and the related deposits could be divided into tow series, sedimenthosted copper(SSC) series consisted of Tangdan, Luoxue, Shizishan and Tongchang copper deposits, etc., which were hosted in sedimentary rocks, such as Yinmin, Luoxue formations, with about 1750 Ma mineralogenetic epoch for primary sedimentary chalcopyrites; Secondly, iron—oxide—copper—gold(IOCG) series consisted of Lala, Dahongshan, Xikuangshan, and Yinachang deposits, etc., which were closely related to the magmatic hydrothermal activities of Kunyang rift, and the metallogenesis ages, such as Yinachang, Xikuangshan, and Etouchang Fe—Cu deposits with highly researched degree concentrated in 1700~1450 Ma. Conclusions:We propose that the intensively magmatic activities, large scale metallogenesis and metallogenic material sources of Fe—Cu, and dynamic mechanics for Kunyang rift may be caused by the late Paleoproterozoic to early Mesoproterozoic Kunyang mantle plume.