An embodiment of the present invention provides an inkjet ink composition including water, a dispersant, inorganic pigment particles having an average primary particle diameter of 100 nm or greater, and resin particles A having a glass transition temperature of 40°C or higher, in which X nm of an average primary particle diameter of the inorganic pigment particles and Y nm of a volume average particle diameter of the resin particles A satisfy Y ≥ 1.1 x X; a maintenance method in a case of using the inkjet ink composition; an image recording method carried out using the inkjet ink composition; and an image recorded material containing a solidified material of the inkjet ink composition.