An inkjet treatment liquid including: a water-soluble coagulating agent; a water-soluble organic solvent; a fluoro-chemical surfactant; a foam inhibitor; and water, wherein the foam inhibitor is a compound represented by General Formula (I), and the fluorochemical surfactant contains a compound represented by General Formula (II): HOR1R3C—[CH2]n—CR2R4OH General Formula (I) in General Formula (I), R1 and R2 each denote an alkyl group having 3 to 6 carbon atoms; R3 and R4 each denote an alkyl group having 1 to 2 carbon atoms; and n denotes an integer of 1 to 6; and Rf-Q-Z General Formula (II) in General Formula (II), Rf denotes a perfluoroalkyl group; Q denotes a bonding group; and Z denotes a hydrophilic group containing —(CH2CH2O)n—, —COO−, —SO3−, —SO4−, or —PO4−; and n denotes an integer of 1 to 50.