Abstract: A S-shaped visible hard intubating stylet comprises a LCD display, a handler and a hard stylet which are connected successively; the hard stylet has an outer end provided with a camera and a light emitter which are connecting to the LCD display, respectively; the hard stylet is formed to comprise, from one end to the other end, successively, a first linear section, an arc-shaped section, a circular arc-shaped section and a second linear section; a tangential direction of a tail end of the circular arc-shaped section that is adjacent to the arc-shaped section, and an axis direction of the handler, have an included angle which is ranging from no 20°; the circular arc-shaped section has a circular arc radius which is ranging from 45 mm to 75 mm; the circular arc-shaped section has a circular arc corresponding to a central angle which is ranging from 60° to 80°; the second linear section and the axis direction of the handler have an included angle which is ranging from 50° to 70°.