Intermediate-acid intrusive rocks, mainly granitoids, are widely distributed in Western Yunnan. Usually accompanied by regional fault zones, metamorphic zones and tectonic fracture zones, they are characterized by multicycle activity. in this paper, it prensents the following petrochemical data; Average chemical data of 4 chief rock-types.Viz. acidic,intermediate-acidic, intermediate and alkaline rock-types, Average chemical data of 18 principal rocks. Average chemical data of the granites of different ages. Average chemical data of the granites in different tectonic-magmatic zones. Average compositional values of the rock-forming elements the 4 chief rock types and the aboundance ("concentration clarke") of the granitoids and inter- mediate rocks.