A radiographic image photographing system includes: a radiation generating device configured to emit radiation； a radiographic image photographing device including a plurality of radiation detecting elements arranged in a two-dimensional pattern and configured to read signal values from the radiation detecting elements； a dose detecting unit arranged between the radiation generating device and the subject and configured to detect a dose of radiation emitted to the subject； and a control unit configured to control the radiation generating device such that the dose of the radiation emitted to the subject becomes a target dose, wherein the control unit sets a tube current or a mAs value of the radiation generating device such that the dose of the radiation becomes the target dose, and corrects and sets the tube current or the mAs value in a case where a difference occurs between the dose of the radiation detected and the target dose.
