Mineralogical and chemical compositions of jade from Luodian area of Guizhou Province were studied in this paper. According to the appearance, the jade can be divided into white jade, grayish white jade, light greenish white jade, sapphire and speckled jade. The structure of Luodian jade observed under the microscope is fibrous-columnar metacrystal intertexture, fibrous-pilotaxitic metacrystal intertexture, and fibrous metacrystal intertexture, with obvious zonation. The electron microprobe analysis of the major mineral amphibole in white jade, grayish white jade, light greenish white jade, sapphire and speckled jade shows that amphibole is the tremolite in calcic amphibole group. According to the Si-Ti variation and genetic type classification diagram of calcic amphibole, this mineral falls into the area of altered and metasomatic amphibole. According to the combination and genetic classification of Ca-Mg-Fe in clinopyroxene and the nomenclature, It can be known that the pyroxenes from the Luodian jade deposit are mainly diopside with a small amount of sahlite.