A three-wheeled bicycle for the wheelchair is provided that wheelchair moves back and is separated from the three wheeled bicycle. A three-wheeled bicycle for the wheelchair comprises a front wheel part(100), a down tube part(200) which is connected in order to be angled while being seperable bottom loads the nose wheel part is pivotally combined in the upper portion, a loading box part including the space mounting wheelchair and the back door which can be used, a back door opening and shutting lever part(400) fixing the wheelchair opening the back door and closes and is mounted.
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