NOVELTY - Conductive anode material preparation involves crushing carbon nanotubes in a ball mill for 1 hour at a rotation speed of 200-500 revolutions per minute. The crushed carbon nanotubes are processed with air flow in an air flow mill and collected. The obtained carbon nanotubes are mixed with 1-5 mol/L of hydrochloric acid and 1-6 mol/L of diluted nitric acid in a vessel in a ratio of 1 g:50-200 ml:50-200 ml. The obtained mixture is processed ultrasonically and filtered by suction filtration. The filtered carbon nanotubes are washed with deionized water until pH is neutral, dried and crushed.    USE - Method for preparing conductive anode material for lithium ion battery (claimed).    ADVANTAGE - The conductive anode material preparation method is simple, and provides highly conductive anode material having excellent charge and discharge capacity.    DETAILED DESCRIPTION - Conductive anode material preparation involves crushing carbon nanotubes in a ball mill. The crushed carbon nanotubes are processed with air flow in an air flow mill and collected. The obtained carbon nanotubes are mixed with hydrochloric acid and diluted nitric acid in a vessel. The obtained mixture is processed ultrasonically and filtered by suction filtration. The filtered carbon nanotubes are washed with deionized water until pH is neutral, dried and crushed. The purified carbon nanotubes are mixed with nitric acid having a mass concentration of 68%, and the obtained mixture is processed ultrasonically for 1-2 hours. The mixture is stirred to condense and reflowed for 2-4 hours at 60-100 degrees C. The reflowed mixture is cooled, diluted with deionized water and filtered with a micro-porous filter membrane by suction filtration. The filtered carbon nanotubes are washed until the pH is neutral, dried and crushed to obtain acidulated carbon nanotubes. The acidulated carbon nanotubes are mixed with 0.1-0.6 mol/L of sodium hydroxide in a vessel, and ultrasonic oscillation is carried out to obtain a suspension, where carboxyl group on the surface of acidulated carbon nanotube is converted into sodium salt. 5-20 ml of esterification graft substance and 1-4 ml of phase transfer catalyst are added to the suspension. The mixture is dispersed by ultrasonic dispersion, reflowed, heated, stirred for 1-3 hours at 80 degrees C and cooled. 35-50 ml of chloroform having a mass concentration of 99.5% is added to dissolve precipitate. The mixture is filtered with a filter membrane and filter residue is recovered. 10-15 ml of absolute ethyl alcohol having a mass concentration of 99.5% is added to separate black precipitate and dried. The obtained precipitate is crushed to obtain esterified carbon nanotubes. Polyvinylidene fluoride adhesive is poured into N-methyl ketopyrrolidine and stirred to dissolve absolutely. Anode material, purified and acidulated carbon nanotubes and conductive agent are added to the mixture and stirred. The anode material is lithium cobaltate, lithium manganate, lithium nickelate or lithium nickelate cobaltate manganate containing ternary composite oxide.