Cathode materials Li0.97Re0.01FePO4 for Lithium ion batteries are synthesized by solid-state reaction method (Re=Er, Y, Gd, Nd, La). The microstructure and electrochemical performance of the doping samples are tested by X-ray diffraction (XRD) and charge-discharge experiments. The experimental results show that doping with rare-earth ions has no effect on microstructure of LiFePO4. Compared with LiFePO4, the samples doping with Er3+, Y3+, Gd3+ possess excellent cycling capability and rate performance, but the samples doping with Nd3+, La3+ have bad cycling capability and rate performance. In doping samples, Li0.97Gd0.01FePO4 exhibits the most excellent electrochemical performance and its discharge capacities both are the biggest at C/10 and 1C ratio.