PROBLEM TO BE SOLVED: To provide a radiation image photographing device that can correct a difference in level between radiation images generated due to a reset operation.SOLUTION: A radiation image photographing device repeats a reset operation to extract and remove charge accumulated in a plurality of pixels 20 arranged in matrix for every line of the pixels 20 arranged in the row direction intersecting the column direction, stops the reset operation when the start of irradiation of radiation is detected, and interpolates, of pieces of created image information, image information on the line of the pixels 20 subjected to the reset operation when the reset operation is stopped, on the basis of image information on the line of the pixels 20 adjacent thereto in the row direction after the completion of the irradiation of radiation.
