Posterior pelvic tilt is a series of symptoms such as compensatory straightening of the lumbar spine, hunchback, and sagging of the hips due to various reasons that cause the pelvis to tilt backward as a whole. The main cause is the imbalance in the strength of the iliopsoas muscle, the muscles of the low back and the abdominal muscles, including the hamstrings of the thighs, resulting in an imbalance in the strength of the pelvis to maintain its position and the symptoms and performance of the pelvis tilting backward. Posterior pelvic tilt is mainly considered to be caused by muscle strength, but it can also arise from trauma or congenital developmental deformities, but is relatively rare. Posterior pelvic tilt can be corrected through corresponding exercises to improve the muscles of the low back, iliopsoas, abdominal muscles and thigh muscles to improve the balance of strength. If the posterior pelvic tilt is not corrected, it will result in compensatory hunchback, increased pressure on the knee joint, and compression of the pelvic organs and other undesirable consequences.