A medical X-ray photographing apparatus includes a support, a support holder, a motor, a turning controller, an image processor, a light emitter, and a processor. The support is configured to turn an X-ray generator and an X-ray detector about a predetermined turning axis while holding the X-ray generator and the X-ray detector such that they face each other. In the apparatus, the light emitter is disposed on a virtual loop line surrounding the turning axis and includes a plurality of color LEDs. The processor is configured to control the light emitter in association with the turning of the support. The processor controls emission of the plurality of color LEDs according to an operating situation of the apparatus.
