This standard establishes comprehensive technical specifications for graphite-based anode materials in lithium-ion batteries, covering a classification system from natural graphite, artificial graphite to composite graphite. It strictly defines 21 core indicators, including particle size distribution, interlayer spacing (d002), degree of graphitization, initial Coulombic efficiency (requirement ≥95%), and trace metal impurities. To ensure high energy density and safety of the materials, the standard stipulates the precise measurement of the material's microstructure and degree of graphitization using X-ray diffraction (XRD); the detection of total magnetic substances such as iron, chromium, and nickel using inductively coupled plasma optical emission spectrometry (ICP-OES) (required ≤0.1 ppm); the analysis of particle size distribution using a laser particle size analyzer; the strict control of moisture content using Karl Fischer coulometric titration combined with a tube furnace; and the evaluation of the material's conductivity and processing performance using a powder resistivity & compaction density testing system. These precise testing methods collectively ensure that the anode materials meet the stringent requirements for high capacity and long lifespan in practical applications.