The Jijie alkaline complex is located in the southern part of Panxi rift, Yunnan Province. The depleted mantle source of Jijie alkaline-ultramafic rocks may be related to the large volumes of Emeishan basalt magmas droved from mantle during Middle-Late Permian in this area. As the multi-stage activities of Paxnxi rift has provide a channel for Emeishan mantle plume, the alkaline magma originated from the lithosphere mantle or mixed mantle low degree partial melting during the early or late stages of Emeishan mantle plume activity invaded along Panxi rift.