The invention discloses plant extraction hair dyeing cream and a preparation method thereof, and belongs to the technical field of hair dye cream. The plant extraction hair dyeing cream comprises a hair dye and an oxidizing agent; the hair dye is prepared from the following components in percentage by weight of cetearyl alcohol, ceteareth, a stearyl trimethyl ammonium chloride solution, polydimethylsiloxane, liquid paraffin, ammonia-terminated polydimethylsiloxane, a chrysanthellum indicum extract, hydrolyzed keratin, p-phenylenediamine, resorcinol, phenyl methyl pyrazolone, m-aminophenol, 2, 4-diaminophenoxy ethanol HCl, an antioxidant, a chelating agent, a PH regulator, a humectant and an aromatic; and the oxidizing agent comprises the following components in percentage by weight of a hydrogen peroxide aqueous solution, cetearyl alcohol, sodium lauryl sulfate, ceteareth-25, a chelating agent, a stabilizer, a pH regulator, an aromatic and the balance of solvent water. According to the plant extraction hair dyeing cream and the preparation method thereof, the problems that some existing hair dyeing cream is poor in hair dyeing effect, causes harm to human bodies after being used and the like are solved.