The metamorphic rocks of the Bainaimiao Group in Bainaimiao Copper Mining District have been metamorphosed to amphibolite facies and greenschist facies, The amphibolite facies consists mainly of leptite, gneiss, blastobandcd amphibolite and non-blastobanded amphibolite. The greenschist facies is composed largely of relict phenocryst-bearing actinolite plagioclase schist and non-phenoc- rystal actinolite plagioclase schist with intercalated chlorite-plagioclase schist. Through studies of their relict textures and REE patterns, both the amphi- bolite and greenschist can he divided into ortho- and para-types. The protoliths of the relict phenocrystal actinolite plagioclase schist and non-blastobanded amphibolite were basic lavas, while those of the non-phenoc- rystal actinolite plagioclase schist and blastobanded amphibolite were tuff or layered tuff.