Abstract: The major elements geochemical characteristics of the Lower Permian tholeiitic basalts from Hongliuhe area show lower Mg，total alkali(Na2O+K2O)，and higher Fe，Ti． large ion lithophile elements(LILE)，such as Rb，K，Sr and Ba are enriched. The light rare earth elements(LILE)are enriched relative to heavy rare earth elements(LILE)．In addition，La／Yb=10．61～16．87，，Th/Ta=1．03～1．99．Fe／Ti=5．3O～6．39，Ti/P=5．61～7．30，Ti/Zr=38．83～46．3O，Zr=(254～328)x1O-6, Zr/Y=5～10 and Y／Nb=1．52～2．45．These characteristics indicate that the magma source of the lower Permian basalts were derived from mixed components of depleted mantle(DM)and enriched mantle(EM)．，The0 latter is the major end-member which reflects a low degree of partial melting of mantle source and a slight crustal contamination．