The invention relates to a soap ammonia type facial cleansing product and a preparation method thereof. The product comprises an amino acid surfactant, a soap-based surfactant, an auxiliary surfactant, an auxiliary agent and a solvent, wherein the amino acid surfactant is at least one selected from potassium cocoyl glycinate, sodium cocoyl glycinate, sodium lauroyl sarcosine, TEA-cocoyl alaninate,sodium cocoyl glutamate, TEA-lauroyl glutamate, sodium lauroyl glutamate and sodium palmitoleyl glutamate; the soap-based surfactant is at least one selected from potassium cocoate, potassium laurate, potassium myristate, potassium palmitate and potassium stearate; and the auxiliary surfactant is at least one selected from sodium lauroamphoacetate, lauryl hydroxyl sulphobetaine, cocamidopropyl betaine, lauryl glucoside, decyl glucoside, cocamidopropyl betaine, cocamide, dodecyl dimethyl betaine and palm kernelamide. The cleaning agent has the characteristics of low irritation, high cleaning efficiency, rich foam and good use feeling.