Pigment for marking sheep

The invention discloses a pigment for marking a sheep. The pigment is prepared from the following components in percentage by weight: 10-28% of lanolin, 15-28% of acetic acid, 0.6-1.2% of glycerol ester of gum rosin, 0.8-1.5% of bentonite, 0.6-1.5% of environment-friendly acid dye and 0.6-1.8% of modified nano zinc oxide. The pigment disclosed by the invention has the advantages of sunlight resistance, rain-wash resistance, friction resistance, impossibility of diffusion, no fuzzy fiber damage, no toxicity, harmlessness and the like, is convenient in processing and safe in use, and has relatively good popularization and application prospects.