The role of lumbar corset is first to reduce the load on the lumbar spine, and its mechanism is to share part of the weight of the upper torso that originally passes through the lumbar spine by the coercive ribs – lumbar corset – iliac bone and the circumferential force generated by the lumbar corset and the tense abdominal muscles; braking is to limit the movement of the lumbar spine. In the acute stage of lumbar disc herniation or during the treatment period, the pain is heavier, the activity limitation is obvious, the patient’s mood is poor, the mental stress is greater, the use of lumbar circumference can relieve pain, reduce mental stress, can effectively promote the recovery. The normal human body supports the lumbar spine mainly from the contraction of its own lumbar and abdominal muscles, and the entire spine is also supported by the muscle groups of the neck, back, lumbar, sacral and thighs. The muscles maintain their own nutrition during normal contraction and diastole. If the waist cushion is used for too long, the range of motion and activity of the muscles and joints are drastically reduced, thus secondary to wasting atrophy of the muscles and different degrees of ankylosis of the joints of the lumbar vertebrae, with the result that the patient is unable to leave the support of the waist cushion, and is dependent on the waist cushion. Once leaving the waist cushion, the atrophied lumbar muscle strength is weak, it is difficult to complete the lumbar spine support, movement requirements, is likely to cause new injuries or lumbar spine disc herniation recurrence. Therefore, the principle of wearing a waist cuff is to insist on wearing it during the acute period when the pain is heavy, but not wear it when resting in bed, so as not to pinch the lumbar skin of the steel plate in the waist cuff; in the case of pain relief and alleviation of the condition, wear it when doing housework or sitting, and unload it when taking a walk or doing rehabilitation gymnastics in an upright position to let the lumbar muscles have an adaptive process; in the case of the basic disappearance of the pain and the freedom of movement, some patients do not think it is necessary to wear a waist cuff. Some patients think that they don’t need to wear waist corset, which is not true. At this time, although the lumbar symptoms disappeared, but the intervertebral disc has been damaged, it is difficult to withstand excessive pressure, therefore, in the work of more laborious or lower temperatures have to wear the sun to avoid recurrence. Wear the waist circumference at the same time, should not aggravate the symptoms of the premise, according to the requirements of the rehabilitation gymnastics exercise lumbar back, abdominal muscle groups, so that the muscles are strong and powerful, to eliminate the inflammation of the lumbar muscles, to achieve the purpose of complete rehabilitation. Restore the normal function of lumbar spine, resume normal work and life, which is the real cure.