Sensory ataxia gait, this refers to deep sensory impairment caused by walking is characterized by a larger stride with a wider spacing between the legs, lifting the foot higher, the footpath is strong to hit the ground with the eyes looking at both feet can be partially relieved when the eyes are open, unstable or even unable to walk when the eyes are closed, often accompanied by sensory impairment Romberg sign positive seen in subacute joint degenerative spinal consumption and so on. That is, spinal ataxia, caused by deep sensory deficits caused by damage to the posterior roots of the spinal cord. Vision can be compensated, so Romberg’s sign is positive, and the heel-knee-tibial test is unstable, along with impaired position and vibration perception of the lower extremities. It is seen in spinal cord lesions, peripheral neurotic mass, and Friedreich’s disorder.