Abstract: LaCl₃, NdCl₃, light rare earth chlorides and CePr concentrates chlorides solution are obtained by grouping of Nd/Sm, La/CePr/Nd separating from medium yttrium, rich europium and mixed RE raw material of southern RE.LaCe concentrates chlorides are obtained by Ce/Pr extracting from rich Ce raw material.After removing non-RE impurities and being precipitated by oxalic acid, the above chlorides become precipitates, after being burnt, the precipitates transform into high-class oxides as raw material using in electrolysis of battery degree RE metals.