The invention discloses a method for preparing fluorizated lithium vanadium phosphate as a lithium-ion battery anode material by using a spray pyrolysis method. The preparation method comprises the following steps of: respectively adding a phosphate source, a vanadium source, a lithium source, a fluorine source, hydrazine hydrate and additives in a certain stoichiometric proportion to water, stirring for 30min to uniformly mix after adding each substance, and finally, forming a mixed solution with the metal ion concentration of 0.2-1.0mol / L; then, putting the mixed solution in a hydrogen airflow spray dryer, spraying and drying at 200-300 DEG C and collecting the product to obtain precursor powder; and tabletting the precursor powder at the pressure of 20MPa, then, sintering at 600-800 DEG C for 10h under hydrogen protection and naturally cooling to a room temperature to obtain LiVPO4F. The method has low raw material cost, simple operation process, strong controllability and high reproduction, effectively shortens the synthesis period of the material and saves the production cost. The fluorizated lithium vanadium phosphate synthesized by applying the method has the grain diameter of 60-500nm, good grain dispersibility, high crystallinity degree, higher reversible capacity and favorable cycle life, can meet various needs of the practical applications of the lithium-ion battery and can be directly used for the mass production of the lithium-ion battery anode material.