The rocks in Taipingzhai area are mainly composed of charnockite and metabasic intrusive bodies. Granulite, amphibolitc, pyroxenite, garnet biotite plagioclase gneiss and BIF are scattered as inclusions in the charnockite.Clinopyroxene occurs widely in various metamorphic rocks of this area. According to the grain size and the mode of occurrence of clinopyroxene as well as its relationship with the other minerals, the three generations of the mineral have been recognized.The large and oriented clinopyroxene grains associated with hypersthene and plagioclase constitute the first generation, whose stable temperature is about 880±60℃.The fine-grained clinopyroxenc surrounding hornblende and the first generation pyroxene make up the second generation, with the formation temperature being 820±60℃.The stable condition of tliese two generations is equivalent to pyroxene granulite subfacies. The third generation clinopyroxene associated with garnet and quartz was formed by the metamorphic reaction of early pyroxene and plagioclase，with the formation temperature being 775℃±.Besides the three generations of clinopyroxene，there is another kind of clinopyroxene which occurs in metagabbro and metabasic dikes. In these rocks，clinopyroxene and plagioclase large in size make up blastophitic texture, suggesting that the clinopyroxene is of magmatic origin and belongs to relict clinopyroxene. The relict clinopyroxene is mainly augite in the metabasic intrusive bodies, whereas most blastic clinopyroxene belongs to sahlite. The composition of the protolith is also one of the main factors controlling the composition of clinopyroxene.