To provide a method for producing high-quality deacidified oil and fat retaining large quantity of residual -oryzanol, sterols, and tocopherols, and to provide a purified oil and fat obtained by this method.

In this production method of deacidified oil and fat, a dehydration process is carried out on a system obtained by adding an alkaline aqueous solution to material oil and fat so that a residual ratio of water in an oil cake becomes lower than residual ratios of components other than water in the oil cake. The purified oil and fat obtained by this method is also provided.