PROBLEM TO BE SOLVED: To provide a radiographic imaging apparatus capable of photographing a radiation image with high sharpness while suppressing deterioration of sensitivity.SOLUTION: In a radiographic imaging apparatus, a radiation detector 20, which has a scintillator 8 for generating light by irradiation of radiation, and a TFT substrate 30 having a plurality of sensor portions 13 including organic photoelectric conversion material for generating an electric charge by receiving the light sequentially stacked thereon, is arranged so that radiation having passed through a subject B is incident from the TFT substrate 30 side.SELECTED DRAWING: Figure 5