A cervical spine self-gravity bowed board lying pillow and supine traction device, comprising: bowed board, backing board, pillow, lying pad; the upwardly curved elastic bowed board part of the bowed board is the occipital edge, and a Pillows with grooves are set on the pillow pool, the curved plate at the lower end of the pillow edge is a flat straight plate, a backing plate is arranged at the lower end of the straight plate, a sleeping pad is arranged on the straight plate, a T-shaped groove is arranged on the upper end of the pillow, and the other side of the pillow A cylindrical groove is set in the middle of the end surface, and a cylindrical protrusion is provided on the cervical vertebra surface. The upper and lower parts of the pillow edge and the upper part of the backing plate are in a suspended state relative to each other. When the outer-diameter individual and the inner-diameter curved surface change relative to the outward and downward angles, there will be a difference in the outer length and inner short size, and the initial gravity point of the back of the head and the pillow cylinder groove will change accordingly, focusing on the convex inner wall of the pillow cylinder against the back of the head. The side wall, through the gravity-induced stretching tension of the occipital edge, pushes the back of the head to form a state of traction on the cervical spine. It is easy to perform safe traction intervention on the cervical spine while lying on the pillow and supine.