Sensory center is the highest level center of somatic sensation, mainly located in the central posterior gyrus of the cerebral cortex, which is the part of sensory nerves in the central nervous system. It mainly has the function of sensing superficial pain, temperature and touch in the body, limbs, head and face. It can be divided into the first sensory area and the second sensory area with the cell column as the basic structural unit. 1. First sensory area: to feel the head, face, body, limbs of the pain and temperature and touch. The localization of sensation in this area in the cortex is distributed in an inverted manner, characterized by clear localization. The upper limbs represent the area in the middle of the post-central cortex, and the lower limbs are at the top. Head-face connections are bilateral. The size of the cortical representative area matches the precision of the sensation. 2. Second sensory area: feel the deep sensations of tendons, sinews, muscles, and joints of the trunk and limbs, and the projection area is in the middle and upper part of the post-central gyrus and pre-central gyrus of the cerebral cortex, and so on. The sensations of the trunk and head and face are projected to the corresponding cortical areas via the thalamus and the internal capsule. It is recommended that patients with impaired sensory centers should consult a doctor in time and be treated under the guidance of a professional doctor to avoid adverse consequences.