The invention provides a nano aqueous conductive carbon black color paste which comprises the following components by weight percent: 18.0-30.0% of conductive carbon black, 0.35-1.4% of powder dispersing agent, 0.7-2.0% of coupling agent, 0.02-0.24% of stabilizing agent, 0.35-1.4% of water-soluble resin, 2.0-5.5% of dispersing agent, 1.0-3.2% of wetting agent, 0.04-0.26% of anti-sedimentation agent, 0.3-1.3% of nonionic emulsifying agent, 0.002-0.008% of pH regulating agent and 55-75% of deionized water. According to the invention, the conductive carbon black color paste is prepared through a method of combing physics and chemistry by adopting dry grinding and dispersing, dry surface modification and wet grinding technologies, thus the problem that the conductive carbon black is difficult to disperse is solved, the particle size distribution of the color paste is narrow, the color paste has good compatibility with adhesive resin and is high in carbon black content, filmed paint can reduce the resistance of a coating to the greatest extent, and the prepared conductive color paste is good in stability.