To provide a radiographic imaging apparatus having an airtight internal space and capable of reducing a difference in air pressure between the inside and the outside thereof, a radiographic imaging apparatus 100 includes a radiation detector (sensor 5) configured to detect radiation transmitted through an object to be examined and convert the radiation into an electrical signal, and sealing members 20 and 21 configured to seal an opening in a housing of the apparatus, wherein the sealing members 20 and 21 have the function of reducing a difference in air pressure between the inside and the outside of the housing.