Abstract: A positive electrode material, including a composite material, where the composite material includes a metal fluoride, a molar ratio of fluorine F to metal element M in the metal fluoride is y, and a molar ratio of fluorine F to metal element M in the composite material is z, where y<z?y+2; and M includes at least one of Al, Cu, Co, Ni, Mn, Fe, or Ag. The positive electrode material in this application has advantages such as wide raw material sources, simple preparation processes, easy to operate, and low production costs. Lithium batteries prepared by using the positive electrode material in this application have increased specific capacity and improved rate performance and cycling performance of the positive electrode material, and good charge and discharge performance.