Preparation method of lithium iron phosphate battery positive electrode material

The invention relates to a preparation method of a lithium iron phosphate battery positive electrode material. The positive electrode material is an LiFe ZnxPO4/C composite positive electrode material, wherein Zn is used as an Fe doping substance; C is used as an LiFe ZnxPO4 coating substance; in addition, LiFe ZnxPO4 is coated by organic/inorganic carbon sources.