The researches on noble gas isotope geochemistry of minerals and rocks are going to be carried out in China. In contrast with the study in China, much progress in this respect has been made in some foreign countries. The paper introduces some main applications about noble gas isotope geochemistry and cosmochemistry. The author is starting a project from 1995 to 1997 on noble gas isotope geochemistry of basalts and deep-seated xenoliths from eastern China and mantle-crust evolution, which is sponsored by the National Natural Science Foundation of China.