The invention discloses a production process of water-based velvet aniline black, which comprises the following steps: p1, adding aniline solid waste, an acidic compound and an oxidant into a reactionkettle, and carrying out oxidation reaction to obtain a reaction mixture; p2, carrying out reduced pressure distillation on the reaction mixture to obtain a distillation mixture; p3, carrying out condensation reaction to obtain an aniline black mixture containing excessive aniline; p4, carrying out an acidification reaction, and then carrying out centrifugal filtration to obtain an aniline blackproduct and wastewater; p5, obtaining an aniline black solution; p6, adding 25%-35% by mass of PU resin into the aniline black solution, uniformly stirring, and standing for 20-30 minutes to obtain astanding solution; p7, weighing 20%-25% of fluff powder, putting the fluff powder into the standing solution, and stirring at a constant speed until the fluff powder is fully dispersed to obtain a mixed solution; and p8, obtaining the velvet aniline black. According to the invention, by treating and recycling wastewater, the environment-friendly effect is greatly improved, and production, popularization and application are facilitated.