NOVELTY - A micro-level spherical lithium iron phosphate (LiFePO4) material is prepared by heating mixture of ferrous sulfate solution and ammonium citrate, and diammonium phosphate solution in the presence of nitrogen while stirring; mixing obtained ammonium iron phosphate with methyl cellulose aqueous solution; adding lithium hydroxide; mixing Span 80(RTM: sorbitan monooleate) with liquid paraffin; adding dropwise prepared dispersion to oil phase; washing and drying to obtain spherical granule; and heating obtained granule in the presence of argon and hydrogen.    USE - Method of preparing micro-level spherical LiFePO4 material (claimed).    ADVANTAGE - The method prepares micro-level spherical LiFePO4 material having a tap density of 1.55 g/cm3, and discharge volume of 163 mAh/g.    DETAILED DESCRIPTION - A micro-level spherical LiFePO4 material is prepared by heating mixture (1-2.5 mol/l) of ferrous sulfate solution and ammonium citrate in the presence of nitrogen at 30-80 degrees C; adding diammonium phosphate solution (1-2.5 mol/l) to the heated solution at a mole ratio of 1:1 while stirring until reactant liquid becomes milky white; reacting further for 10-50 minutes; subjecting to centrifuge and filtering; washing with twice distilled water to obtain ammonium iron phosphate; mixing obtained ammonium iron phosphate with 1-5% methyl cellulose aqueous solution; adding lithium hydroxide; subjecting to ultrasonic for 5-15 minutes to form dispersion with ammonium iron phosphate content of 10-30 wt.%; mixing Span 80(RTM: sorbitan monooleate) with liquid paraffin at a weight ratio of 1-15:100; stirring to obtain oil phase; adding dropwise prepared dispersion to the oil phase at a ratio of 1-10:100; heating at 30-50 degrees C while stirring at a speed of 150-250 rpm for 3-5 hours; filtering and extracting using 0.22 mu m filter membrane; washing; vacuum drying at 70-90 degrees C for 10-15 hours to obtain spherical granule; and heating obtained granule at 700-900 degrees C for 10-24 hours in the presence of mixture (wt.%) of argon (95) and hydrogen (5).