Provided is an X-ray imaging device in which a sensor for verifying the presence of an X-ray detector detects that an operator has removed the X-ray detector from an accommodation section and transmits a signal to a lifting/lowering control unit indicating that the X-ray detector has been removed from the accommodation section. As a result of receiving the signal, the lifting/lowering control unit releases braking force resulting from electro-permanent magnets (41, 42). As a result, the adhesive force of the electro-permanent magnet (41) with respect to a fixing section (18) and the adhesive force of the electro-permanent magnet (42) with respect to a stopper plate (43) are released. In a state in which the fixing of an arm (13) by the electro-permanent magnets (41, 42) is released, the arm (13) begins to rise together with an X-ray tube (11) and a collimator (12) as a result of the weight of a counterweight (45) being heavier than the total value of the weight of the arm (13), the X-ray tube (11), the collimator (12), and the like.