The present invention relates to a nasolacrimal duct tube. A nasolacrimal duct tube, according to one embodiment of the present invention, comprises a lachrymal passage enabling lachrymal fluid to move between the inside and outside of the tube. According to the present invention, since lachrymal fluid can easily be discharged even while the tube is inserted into a human body, it is possible to decrease the possibility of inflammation occurring and the risk of infection, and it is possible to permanently leave the tube in the body without removing the tube after the operation.
