To provide radiographic imaging apparatus and a radiograph generating method simply allowing a long imaging.

This radiographic imaging apparatus 1 is provided with a radiation source 7 generating radiation and a radiograph detector 3 detecting the radiation irradiated form the radiation source 7 and penetrated a subject 30. The apparatus is further provided with a parallel movement mechanism moving at least either one of the radiograph detector 3 or the subject 30 approximately in parallel to the body axis direction of the subject 30, and a link movement mechanism 15 moving the radiation source 7 approximately in parallel to the body axis direction of the subject 30; and the radiation source 7 applies radiation to the radiographic detector 3 at a plurality of positions whose positions relative to the subject 30 are different.