There is provided an environmental-friendly inkjet ink composition, comprising an organic solvent, a pigment or a dye, a surfactant, a dispersant, and a wetting agent. The low-toxic, non-pungent, and high-boiling polyethylene glycol ether solvent, the fruit smelling acetoacetate solvent, the food grade resin, and the non-harmful additives containing silicon are used in the inkjet ink composition. Such an inkjet ink composition has excellent humectancy, high printing resolution, and has very good adhesion to a wide variety of substrates when applied in printing. Also, the inkjet ink composition is non-pungent, environmental-friendly and found no harmful to human bodies.