DR examination is also known as digital X-ray imaging technology, how to do DR examination has to do with the part of the patient to be examined, for example, if the patient is doing a DR examination of the lungs, the patient is required to take the orthopedic position and the lateral position for the detection of two kinds of body position. If the patient is doing a radiological examination of the gastrointestinal tract, it is necessary to take a different supine position or lateral position, or even an upright position for the examination according to the doctor’s requirements. In the examination of the bone and joint system, according to the morphology of different parts of the bone and joint, some may have to take the standing position, some take the prone position, in the radiological examination of the hand to the hand position, in the examination of acute abdomen need to take the standing position.