The invention discloses a needle-shaped amino acid crystal cleansing gel and a preparation method thereof, belonging to the field of daily chemical products. The cleansing gel comprises the following components: Phase A component: water, disodium EDTA, glycerin; Phase B component: cocamidopropyl betaine, potassium cocoyl glycinate, disodium lauryl sulfosuccinate , Decyl Glucoside, Glyceryl Oleate, Sodium Methyl Cocoyl Taurate, Quaternium-80, Sodium Isostearyl Lactyl Lactylate, Vegetable Amino Acids, Methylparaben, N-Lauroyl-N ‑Sodium Methyl Taurate, Lauryl Trimethyl Ammonium Chloride, Lauryl Dimethyl Betaine. There is electrostatic attraction between N-lauroyl-N-methyl sodium taurate in the present invention and dodecyltrimethylammonium chloride and dodecyldimethyl betaine, thereby synergistically improving foam stability Sexuality.