Disclosed is a workshop floor cleaner. Raw materials of the cleaner include, by weight: 2.4 to 3.2 parts of benzene sulfonate, 2.5 to 6.5 parts of polyacrylamide, 1.3 to 4.2 parts of amido-sulfonic acid, 2 to 5 parts of sodium silicate, 2.5 to 3.2 parts of potassium chloride, 4.5 to 7.5 parts of aspartic acid, 2 to 3.5 parts of cleaning aids, 2.6 to 4.5 parts of fatty acid diethanolamide, 0.5 to 1.2 part of dehydroascorbate, 0.8 to 1.4 part of tertiary butylhydroquinone, 2.5 to 4.5 parts of naphthenic acid, 4.5 to 6 parts of triethylene glycol alkyl ether, 2 to 5 parts of benzotriazole, 0.2 to 1.5 part of molybdate and 8 to 14 parts of hydroxyethylidene diphosphonic acid. The workshop floor cleaner has the advantages that the cleaning effect of mineral oil, vegetable oil and mixed oil is fine, cleaning time is short, and labor force and working time are saved.