A configuration and a coating method of an aluminium foil precoat nano conductive carbon primary coat liquid. The method comprises the following steps of: 1) configuration of the primary coat liquid; 2) ultrasonic dispersion. A cell prepared by the primary coat liquid of the invention has small internal resistance, strong anchoring strength, good conductivity and large compacted density; and the primary coat liquid has obvious effect on high-rate discharge of the cell. Conductive current collectors with different thicknesses can be coated according to cell design requirements and the viscosity of the primary coat liquid, so as to enhance different performances of the cell.