Abstract: NiO nanosheet arrays were fabricated on the surface of carbon cloth (CC) by hydrothermal method and chemical bath method.The NiO prepared by the two methods are cubic structure NiO sheets, and the crystallization of the NiO prepared by hydrothermal method is better than that prepared by chemical bath method.The CC/NiO prepared by the two methods were used as anode materials for lithium-ion batteries and the electrochemical performance was examined.It was found that the capacity of CC/NiO anode material prepared by hydrothermal method was nearly 22%, higher than that of CC/NiO anode material prepared by chemical bath method, after 500 cycles at a current of 2 mA/cm².The main reason is that the CC/NiO nanosheets prepared by hydrothermal method have flat morphology and good crystallization, which leads to the increase of the excess theoretical capacity brought in by the pseudocapacitance.The contribution of the pseudocapacitance to the total capacity is about 80% at the sweeping speed of 1.0 mV/s.