The main principle of functional rehabilitation exercise after lumbar spine fusion surgery is gradual, after the surgery time is not long should be in the case of lumbar peripheral external fixation protection, slowly exercise to walk on the ground, especially at the beginning to be assisted to avoid falling, the main purpose is to restore the strength of both lower limbs, to walk normally without feeling the weakness of the lower limbs as the standard, with the passage of time, the next The next step can be to remove the lumbar circumference external fixation protection, generally is about 2-3 months. Continue to exercise to walk on the ground, and at the same time can lie on the bed to do five-point support method, or lying on the bed to do the small swallow flying lumbar back muscle function rehabilitation exercise, but at first when doing these movements must be small in amplitude, the speed must also be slow, and so the strength of the lumbar back muscle gradually recovered, the level of daily life is basically satisfied, but also must pay attention to avoid bending, sedentary, long standing.