A drainage tube introducer for operating on a Bartholin's duct abscess, the drainage tube introducer comprising: an introducer body including a pin hole provided on a distal end thereof, an inner space communicating with the pin hole, and a stop hole formed through one side of a circumference of the introducer body, the stop hole communicating with the inner space; a pin for inserting a drainage tube, the pin being introduced to the inner space so as to move forward/rearward relative to the pin hole, wherein when the pin moves forward, a pointed introducing end portion of a distal end side of the pin protrudes through the pin hole to an outside; an operating lever, made of an elastic material, being connected to a rear portion of the pin for inserting the drainage tube and having a stop block inserted into the stop hole while the pin moves forward, and a protruding part provided at the stop block, the protruding part protruding through the stop hole to an outside, wherein when the stop block is pressed, the stop block is bent in a direction being released from the stop hole; an elastic member applying an elastic force to the pin in a direction in which the pin moves rearward; and a sleeve for manipulating the pin, the sleeve being fitted over the outer circumference of the introducer body so as to move slidably thereon and arranged so as to cover the stop hole and having a pressing protrusion pressing the protruding part while being in contact with the protruding part when the sleeve slides, wherein the drainage tube is fittable over an outer circumference of the introducing end portion protruding through the pin hole to the outside, is introducable through an incision portion into an infected portion in cooperation with the introducing end portion, and is separatable from the introducing end portion when the stop block is released from the stop hole and the pin is moved rearward by the elastic member. an introducer body including a pin hole provided on a distal end thereof, an inner space communicating with the pin hole, and a stop hole formed through one side of a circumference of the introducer body, the stop hole communicating with the inner space; a pin for inserting a drainage tube, the pin being introduced to the inner space so as to move forward/rearward relative to the pin hole, wherein when the pin moves forward, a pointed introducing end portion of a distal end side of the pin protrudes through the pin hole to an outside; an operating lever, made of an elastic material, being connected to a rear portion of the pin for inserting the drainage tube and having a stop block inserted into the stop hole while the pin moves forward, and a protruding part provided at the stop block, the protruding part protruding through the stop hole to an outside, wherein when the stop block is pressed, the stop block is bent in a direction being released from the stop hole; an elastic member applying an elastic force to the pin in a direction in which the pin moves rearward; and a sleeve for manipulating the pin, the sleeve being fitted over the outer circumference of the introducer body so as to move slidably thereon and arranged so as to cover the stop hole and having a pressing protrusion pressing the protruding part while being in contact with the protruding part when the sleeve slides, wherein the drainage tube is fittable over an outer circumference of the introducing end portion protruding through the pin hole to the outside, is introducable through an incision portion into an infected portion in cooperation with the introducing end portion, and is separatable from the introducing end portion when the stop block is released from the stop hole and the pin is moved rearward by the elastic member.