A composite aqueous colorful coating comprises a composition A and a composition B. The coating is characterized in that the main ingredients of the coating include aqueous film forming material, filling, surfactant, aqueous resin, polysaccharide derivative, pigment, polymerization promoter, anti-mould agent, protective adhesive and water. Due to introduction of the polysaccharide derivative into preparation of the coating, lipophilic association and charge interaction between high molecular water-soluble polymers and the surfactant in water can form colloidal complexes of even higher molecular weights by which a colorful coating with patterns of different sizes and colors is produced so that particles cut by machines have excellent stability, and even when the pigment content is high, problems such as color bleeding and missing, which appear in the prior art, do not occur.