LiNi1/3Co1/3Mn1/3O2 and LiNi3/8Co1/4Mn3/8O2 nanofibers as cathode materials for lithium-ion batteries are successfully prepared from sol precursors by using electrospun method. The morphology, crystal structure and electrochemical behaviors are characterized by atomic force microscopy (AFM), X-ray diffraction (XRD) and charge-discharge experiments. The results show that the nanofibers possessed typical layer-structure and the average diameter is in the range of 150-200 nm. Both the initial discharge capacities of LiNi1/3Co1/3Mn1/3O2 and LiNi3/8Co1/4Mn3/8O2 nanofibers are over 170 mAh·g-1 and the capacity retention rates are over 90% up to 50 cycles