This paper deals with the distribution of glaucophane schists in Chinas the metamorphic conditions of glaucophane·schist facies and their tectonic positions.The glaucophane .schists appeared in various metamorphic periods since Middle·Late Proterozoic. According to their mineral assemblage, they may be divided into two groups. The first group is characterized by the association of glaucophane, crossite of magnesioriebeckite stilpnomelane, and piedmintite with the common minerals of greenschist facies, such as epidotite, actinolite, chlorite, muscovite and sometimes also biotite, almandine or sodicpyroxene. The formation conditions of these assemblages are 350-450℃C, and 500-800MPa. It is considered that they :are piobably the hig-pressure variation of greenschist facies-glaucophane gree- nschist facies. They usually occur in narrow belts that often extende into the metamorphic terrain of low-greenschist facies, and in some cases, are accompanied by ultrabasic rock belts and abyssal radiolarian siliceous sediments. Geological and petrological evidence indicates that they were formed during the closing of the local deep oceanic trough of a mobile belt, and are not directly related to plate tectonics. The rocks of another group often contain high·pressure minerals,such as lawsonite, jadeite and aragonite in addition to glaucophane, pumpellyite,stilpnomelane, phengite,piedmontite etc.They belong to high-pressure subgreenschist facies, which is referred to as glaucophane lawsonite facies. Its formation conditions are 250-350℃with pressure greater than 500-800MPa, even reaching 1200MPa. Most of the glaucophane schist belts in China belong to the first group, while that of southern Tibet (R. Yarlung Zangbo) and Ondor Sum district of Inner Mongolia may fall to the second group,which represent the ancient subduction zones of oceanic piate.