This paper reports some new data of isotopic chronological study on rockforming and oreforming, obtained by the research group of “National Program of important mineral resources and regional metallogeny”, during the period from June, 2005 to July, 2009. All of the 400 dating results represent 145 mines or some newly discovered ore deposits, about 3/4 of which have not been published. This data were measured by newly and commonly used methods such as Zircon SHRIMP UPb, ReOs and ArAr dating methods. The deposits dated in this paper were selected widely from recently discovered deposits (such as the Dongyuan largescale WMo deposit discovered in 2008 in Anhui Province) and those deposits mined or have been prospected but without acceptable oreforming ages (such as the Zimudang largescale Au deposit in Guizhou Province) or those have been argued for a long time (such as the Malipo largescale WSn deposit in Yunnan Province). All of the data contribute a lot to the study of typical deposits, regional metallogeny, tectonic evolution, mineral resource assessment and exploration. For example, the ages between 177Ma and 170Ma from the Xiongcun superlargescale CuAu deposit in Xietongmen, Xizang, suggest that not only the Cenozoic but also the Mesozoic oreforming epochs are very important for the Gangdise metallogenic belt.