Bone fracture can grow taller. Bone fracture is often referred to as osteotomy or bone lengthening technology in orthopedics. The principle is to use external fixation device to break the complete bone, and use the tissue regeneration ability and characteristics of human body to adjust the speed of 0.5- 1mm every day to slowly lengthen the limb. The conventional height increase can reach 10- 16cm. Excessive extension may lead to excessive stretching of nerves and blood vessels, leading to numbness of limbs and poor blood circulation. Although osteotomy can make the body grow taller, it is not allowed to be used in normal people by law now, and it can be used in the unequal length of limbs of polio and other patients with diseases. It is warned that we should choose the technique of increasing height reasonably, and it is best to exercise more before the epiphysis is closed to promote height development.