PROBLEM TO BE SOLVED: To provide a non-corrosive acetic peracid preparation which is environmentally friendly, has high sterilization property and disinfection property, and suppresses occurrence of corrosion to metals, especially to iron, and a production method thereof.SOLUTION: After a peroxide stock solution to which a trace quantity of polyacrylic acid is added, is mixed with a stock solution of an acetic peracid preparation having a specific composition, the mixture is diluted by water for obtaining the acetic peracid preparation including peroxide, acetic peracid, acetic acid, and polyacrylic acid. The obtained acetic peracid preparation has high sterilization force and disinfection force, and suppresses corrosion action to an iron material and the like.
