To achieve high conveying accuracy by reducing back tension on a recording medium being conveyed. A feeding device includes a pressure plate on which recording media are loaded; feeding means for feeding the recording media; a regulating member configured to regulate a position of a side edge of the recording media; supporting means for supporting the regulating member, the supporting means having a bottom portion on which the recording media are partially loaded; and moving means for separating the regulating member from the side edge of the recording media. The feeding means starts to feed the recording medium while the position of the side edge of the recording media is being regulated by the regulating member, and the moving means separates the regulating member from the side edge of the recording media after a conveying means starts to convey the recording medium fed by the feeding means.