The invention relates to water-based bi-component polyurethane color paint, comprising the following hydroxyl components by mass portions: 4-12 portions of water, 3-6 portions of dispersion resin, 2-30 portions of pigments, 0.1-0.5 portion of antifoaming agents, 50-90 portions of acrylic hydroxyl emulsion, 0.1-0.5 portion of wetting flatting agent, 0.1-0.3 portion of slipping agent, 0.1-0.5 portion of microbicide, and 0.1-1 portion of thickening agents; wherein the acrylic hydroxyl emulsion is a hardcore soft shell structure, the hydroxyl content is 2.5-3.0 by mass percentage, and the hydroxyls are primary hydroxyl groups and are uniformly distributed on a shell layer; when the emulsion is synthesized, the emulsifier is reactive type emulsifier; the curing agent is self-emulsifying aliphatic isocyanate with 100 of solid content by mass percentage in water; when in use, the hydroxyl components and the curing agents are mixed according to 6-8:1 by mass portion; the VOC content of the paint in the invention is far lower than that of the existing water-based bi-component polyurethane color paint, the rigidity and toughness of the coating are considered, and the invention has good wearing resistance and chemical resistance.