The present invention discloses a natural anti-dandruff shampoo and conditioner preparation method comprising the following parts by weight of raw materials: saponin 5-10 parts  Chinese medicine extract  30-50 parts, tea saponin 4-8 parts, Sapindus saponins  6-10 parts, jasmine  0.5-0.8 parts of lecithin  3-5 parts  Peppermint oil  0.8-1.5 parts of aloe vera gel 8-12 parts of citric acid  0.5 to 1.5 parts and water  60-80 parts. Natural shampoo of the present invention, raw materials are all natural plant as raw materials, chemical-free ingredients, raw materials, simple preparation method, low cost and ease of operation when used with a non-irritating, non-toxic, non-polluting, environmentally and do not cause harm, good cleaning effect and so on.