Provided is an image forming apparatus for an inkjet recording having improved bleed resistance and stickiness resistance of formed image, exhibiting excellent abrasion resistance and adhesion to the recording medium, and having capability of printing onto recording medium with low softening temperature. An image forming apparatus for an inkjet recording method that forms an image by jetting a photo-curable inkjet ink comprising a colorant, a photo-curable monomer, a photo-initiator and a gelling agent onto a recording medium, and photo-curing the ink by a light irradiation apparatus, wherein an illuminance of the light irradiation apparatus is 1 mW/cm2 or more and 50 mW/cm2 or less, the apparatus comprising: a warming section for warming the photo-curable inkjet ink at a temperature of 5 to 30° C. higher than a gelling temperature of the photo-curable inkjet ink, and a control section for controlling a surface temperature of the recording medium at a temperature of 5 to 30° C. lower than the gelling temperature of the photo-curable inkjet ink.