Fecha de publicación: 11/03/2022 Fuente: Wipo "olive oil" The invention discloses an artificial melanin hair dye with an ultraviolet protection function and a preparation method of the artificial melanin hair dye. The hair dye comprises a first agent and a second agent, wherein the first agent consists of the following components: 1%-3% of 5, 6-dihydroxyindole; 0.5% to 1.5% of curcumin; 4% to 8% of C16-18 alcohol; 12%-16% of olive oil; 0.5%-2% of PEG-7 olive oil; 2%-8% of propylene glycol; 1%-6% of cysteine; 0.1%-0.2% of sodium sulfite; 0.1% to 0.5% of ascorbic acid ethyl ether; 0.2% to 2% of polydimethylsiloxane; 0.05% to 0.1% of guar gum hydroxypropyl trimethyl ammonium chloride; 6% of ethanolamine; and the balance water. According to the invention, curcumin and 5, 6-dihydroxyindole are combined through pi-pi conjugation interaction, so that an absorption band gap is reduced, and an ultraviolet protection function is obtained. And the addition of the curcumin can increase the blackness of the dyed hair.