A composite tube cushion is disclosed. The composite tube cushion includes a tubular member filled with air therein, an insertion portion formed at a central portion thereof and a drain port formed at a bottom surface of the insertion portion, and a cushion member detachably inserted into the insertion portion of the tube member and having a seating portion formed on an upper surface thereof do.복합 튜브 쿠션이 개시된다. 복합 튜브 쿠션은, 내부에 에어가 충진되고 중앙부에는 삽입부가 형성되며 삽입부의 저면에는 배수구가 형성된 튜브부재와, 튜브부재의 삽입부에 착탈 가능하게 삽입되며 상부 표면에는 안착부가 형성되는 쿠션부재를 포함한다.