PROBLEM TO BE SOLVED: To provide a humor suction tube capable of smoothly sucking humor without inflicting pain on a patient.SOLUTION: A humor suction tube (1), the bottom part of which is connected to a suction pump (6), is used for sucking humor from a tip end. An inner tube (2) and an outer tube (3) are formed into a double tube. Any one flow path of an inside flow path (8) formed inside the inner tube (2), and an outside flow path (9) formed between the outside of the inner tube (2) and the outer tube (3) is defined as a humor suction flow path communicating to the suction pump (6), and the other flow path is defined as an open flow path opened to an atmosphere at the bottom side. Especially, the tip ends of the inner tube (2) and the outer tube (3) are rounded into a circular shape and formed into circular tip ends (24 and 25), and humor suction ports (10 and 20) of the humor suction flow path are formed at the inside of the circular tip ends (24 and 25). Furthermore, a spiral slit (21) is formed at the tip end of the inner tube (2).