The placement of a good limb is one of these basic rehabilitation tools. As the name implies, it is a position or posture in which a limb is placed in order to maintain good function. Because hemiplegia is prone to spasm of the body’s anti-gravity muscles, that is, flexor spasm of the upper limbs and extensor spasm of the lower limbs. Therefore, the placement of the good limb position is extremely specific to this spasticity pattern. Early bed rest for hemiplegia can be taken in 3 posture rotations: supine position, healthy side lying position and affected side lying position, it is better to take more side lying position, and supine position should be used relatively less in general. In the supine position: on the affected upper limb, extend the scapula forward and upward as much as possible, and put a soft pad under the scapula; the shoulder joint extends to a 45° angle with the body; the elbow joint and wrist joint extend with the palm upward; the fingers extend slightly apart and the thumb extends. On the affected lower limb, put a soft pad under the waist and hip, and rotate the hip joint slightly inward; bend the knee joint slightly, and put a small pillow under the knee; do not touch anything on the sole of the foot. The upper extremity on the affected side, with the shoulder extended forward and the elbow and wrist joints kept extended, and a soft pillow under the armpit to keep the shoulder and upper extremity abducted. On the affected lower extremity, the hip is slightly flexed and held forward, the knee is flexed, and the ankle is slightly passively dorsiflexed. The healthy limb can be placed naturally. Affected upper limb: Affected upper limb, shoulder forward, forearm rotated backward, elbow and wrist extended, palm up, fingers extended. Lower limb, healthy limb in front, affected limb behind, knee bent on the affected side, slightly passive dorsiflexion of the ankle joint. Early placement of good limb position, moderate joint movement, together with effective rehabilitation such as active movement and weight reduction gait training, most hemiplegic patients can receive good results.