The invention relates to a facial cleanser containing a mixed surfactant and a preparation method of the facial cleanser. The facial cleanser is prepared from the following components in parts by weight: 20-40 parts of fatty acid, 10-30 parts of polyhydric alcohols, 1-6 parts of a nonionic surfactant, 5-8 parts of alkali, 0.3-1.5 parts of emulsifier, 0.5-2 parts of a thickener, 2-20 parts of the mixed surfactant, 0.02-0.08 part of a chelating agent, and 18-45 parts of water, wherein the nonionic surfactant is a composition formed by PEG / PPG-25 / 30 copolymer and PEG-6, and the mixed surfactant is a composition formed by PEG-6, polyquaternium-43 and PEG / PPG-300 / 55 copolymer. The facial cleanser is rapid in foaming, has rich, smooth and elastic foam, has good moistening property and good moisture retention, has no stimulation, can be easily cleaned after washing, has very good stability, has heat resistance, and is uniform and stable at 48 DEG C, and after temperature returning, the cream is fine and uniform.