An apparatus for hyperbaric oxygen therapy for rehabilitation and an operation method thereof are provided. The apparatus for hyperbaric oxygen therapy according to an embodiment comprises: an oxygen capsule in which the inside is sealed to supply oxygen; a seat portion provided on the inside or below the oxygen capsule to allow a user to seat on; and an angle adjusting portion configured at a lower portion of the oxygen capsule and the seat portion to adjust an angle of at least one or more of the oxygen capsule and the seat portion.;COPYRIGHT KIPO 2020
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