A catheter fixture 11 for fixing a tubular catheter 1 to skin of a patient is provided with a plate shaped fixture main body 21, a fixing member 41 that is configured separately from the fixture main body, and a pivot connecting shaft 45. The plate shaped fixture main body 21 includes a retention part 22 where a catheter retaining groove 25 is formed, and a pair of winged pieces 23a and 23b. The pivot connecting shaft 45 both connects the fixture main body 21 and the fixing member 41 and acts as the pivot access C1 of the fixing member 41. The fixing member 41 has a pivoting action along a horizontal plane direction of the fixture main body 21 centrally around the pivot connecting shaft 45. When doing so, the catheter retaining groove 25 is covered by the fixing member 41 thereby fixing the catheter 1.