To further improve the rate performance and cycling stability of Na3V2(PO4)(3)/C for lithium-ion batteries cathode, multi-walled carbon nanotubes (MWCN) have been adopted to enhance the electronic conductivity of the material. Here, the MWCN modified Na3V2(PO4)(3)/C composite is successfully synthesized via a microwave solid-state route. The influences of MWCN added on Na3V2(PO4)(3)/C are studied by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The obtained composite shows excellent C-rate performance, delivered capacities of 146.5, 1423, 135.2, 126.7, 114.6 and 101.8 mAhg(-1) at 0.1, 0.5, 1.0, 2.0, 5.0 and 10.0 degrees C in the voltage range of 2.5-4.6 V. respectively. Moreover, the capacity retention is 92.5% with the discharge capacity of 94.2 mAhg(-1) at 10.0 degrees C after 20 cycles. Electrochemical impedance spectroscopy profiles reveal that the charge-transfer resistance of Na3V2(PO4)(3)/C is remarkably reduced after MWCN were added. In all, these results suggest that MWCN should be a promising carbon supporter for Na3V2(PO4)(3)/C electrode. (C) 2015 Elsevier B.V. All rights reserved.