The present paper describes geochemical characteristics of Jinsha River ophiolites in Baimaxueshan, Shusong, Gongka and Jiyidu areas of Deqen County. Verious rocks assemblages of the ophiolites are exclusively of LREE-enriched patterns, and their genesis and tectonic setting are discussed here. It is pointed out that the trace element and REE characteristics of basalts could be interpreted by mixing N-MORB with OIB, and that Jinsha River Ophiolites were probably formed in a tectonic environment characterized by the superimposition of spreading ridge and mantle plume, similar to things of Iceland.