There is provided a radiographic imaging system including: a radiographic imaging device including a generating section that captures a radiographic image expressed by irradiated radiation and generates image information expressing the captured radiographic image, and a first communication section that transmits, plural times and by wireless communication and even during a response wait time period, imaging start instructing information that instructs starting of imaging when preparations for capturing a radiographic image by the generating section have been completed; and a control device having a second communication section that can communicate by wireless communication with the first communication section, and a control section that controls a radiation irradiating section such that radiation is irradiated with respect to the radiographic imaging device in a case in which the second communication section receives any of the imaging start instructing information that are transmitted plural times from the first communication section.