Method for inkjet textile printing comprising a printing step for printing an aqueous pigment ink on a specifically pretreated portion of a textile fiber product by an inkjet process,wherein said specific pretreatment is performed by applying at least: (A) a quaternary ammonium salt type cationic surfactant represented by the formula (1) below, and (B) a block isocyanate compound to the entire textile fiber product or a required portion thereof, and said aqueous pigment ink comprises at least a pigment, an aqueous liquid as a solvent or dispersion medium, and: (C) a water-soluble dispersing agent having a crosslinking property, (D) a self-emulsifying type urethane resin, and (E) a block isocyanate compound. [Two of R1 to R4: alkyl having 8 to 18 carbon atoms; the remaining two: methyl or ethyl; X−: anion.]