To provide a tracheostomy tube which can be easily attached to and detached from an incision site and in which sputum or the like does not readily longer, a tracheostomy tube A includes a lumen body 10 having an airway securing lumen 10b, a connector section 11 formed at the base end portion of the lumen body 10, and a cuff 13 which is formed on the outer circumference of the tip end portion of the lumen body 10 and which can be expanded and contracted. A circumferential wall 10a of the lumen body 10 defines a cuff-expanding lumen 15 which puts the surface portion of the connector section 11 in communication with the inside of the cuff 13. it also defines a suction lumen 14 allowing the surface portion of the connector section 11 to communicate with the surface portion of the lumen body 10. A coating layer exhibiting surface lubricity in moisture is formed on the surface of the tracheostomy tube A and the inner surface of the lumen body 10 in which the airway securing lumen 10b is formed.
