Composites Li 1−x V x Cr y Fe 1−y PO 4 /C (x=0.01, 0.02; y=0.01, 0.02) were synthesized by solid-state reaction method. The influence of the content of doping vanadium and chromium on the structure of Li 1−x V x Cr y Fe 1−y PO 4 /C was investigated by XRD, while the morphology of powders was observed by SEM. The investigation of the electrochemical performances showed that the Li 0.99 V 0.01 Cr 0.02 Fe 0.98 PO 4 /C material has a higher capacity. At 0.1C discharging rate, it is capable of delivering reversible specific capacity of 163.8mAh/g with fairly stable cycleability.