The present invention provides a clothing treatment apparatus capable of enabling an orientation of a bag body and an orientation of an ozone supply apparatus to keep a desired relationship. A clothing deodorizing apparatus (1) includes: a bag body (10) for accommodating clothing； an ozone supply apparatus for supplying air into the bag body (10)； an introduction pipe (30) for guiding the air with the ozone exhausted from the ozone supply apparatus into the bag body (10)； a cylindrical part (15) formed on the bag body (10) and fixed with one end part of the introduction pipe (30)； and an inserting port part formed on the ozone supply apparatus and configured to detachably install the other end part of the introduction pipe (30) in a specified orientation. Herein, a prevention unit for preventing the introduction pipe 30 from rotating is arranged in an in-plane direction perpendicular to an installation direction of the introduction pipe (30) to the cylindrical part (15) between the one end part of the introduction pipe (30) and the cylindrical part (15).
