To provide an aqueous ink for an inkjet, by which a high-quality image can be obtained, and which is high in the friction resistance of the image and an adhesion property to a recording medium, and is excellent in the reservation stability and discharge stability of the ink.

The aqueous ink for the inkjet is used for forming the image at the pre-heated recording medium, and contains a water-soluble organic solvent and a resin fine particle. The aqueous ink for the inkjet is characterized in that: a content (mass%) of the resin fine particle in the aqueous ink is not smaller than 2.0 mass% and not larger than 5.0 mass% based on an ink entire mass as a reference; the water-soluble organic solvent contains a non-protonic polarity solvent A, a protonic polarity solvent B1 whose vapor pressure at a temperature of 20°C is not lower than 0.10 kPa and not higher than 2.34 kPa, and a solvent C which is polyethylene glycol whose coagulation point is not higher than 30°C; and the following expression is satisfied. 1.15≤V/(P/D)≤1.50.