Abstract: The present invention relates to a movable aquaculture platform suitable for offshore onboard cabin culture and open culture. The aquaculture platform includes a hull with a propulsion system and an onboard control system. A recess recessed downwards based on a plane of a main deck is provided between the front and rear of the hull. Both sides of the recess are formed into an open structure corresponding to double sides of the hull. The recess is provided with a closed cage. The cage and the recess together constitute an open culture cabin. An internal space of the cage is used for culture. The hull is provided with a closed culture cabin below the recess. The present invention can flexibly switch between an onboard closed cabin culture mode, an onboard open cage culture mode and a mixed mode thereof according to different working conditions.