A sheet humidification apparatus includes a detect sensor that detects a position of a sheet which is being conveyed; a humidifier that changes a humidification amount and humidifies the sheet; and a controller that controls the humidifier such that a first region on a front end side of the sheet in a conveyance direction is humidified with a first humidification amount, and a second region of the sheet other than the first region is humidified with a second humidification amount larger than the first humidification amount in accordance with a position of the sheet detected by the detect sensor.