PROBLEM TO BE SOLVED: To provide a drain catheter having excellent drainage and exhaust properties.SOLUTION: A drain catheter comprises: a cylindrical drainage portion； and a cylindrical liquid collection portion having a curved part at least part of which is curved. The liquid collection portion has a branch region in which at least one partition wall for forming a plurality of channels is provided, in an axial direction at least in part. The internal space of the branch region of the liquid collection portion is partitioned into at least one main channel extending over the whole length of the liquid collection portion and at least one sub-channel by the partition wall. Each of the main channel and the sub-channel communicates with the internal space of the drainage portion, the tip of the main channel in the axial direction is opened to the outside via a tip opening formed at the tip of the liquid collection portion, and each sub-channel is opened to the outside via a peripheral surface opening formed in an outer peripheral surface of the branch region.
