Underwater operation sealed cabin

The invention provides an underwater operation sealed cabin which comprises a cover body; the cover body is provided with a connecting opening corresponding to a construction operation surface; the edge of the connecting opening is provided with a magnetic connecting assembly; the magnetic connecting assembly can be connected with the construction operation surface in a sealed mode; a sealing dooris arranged in the connecting opening; and the sealing door can be closed before the magnetic connecting assembly and the construction working face are connected in a sealed mode and opened after themagnetic connecting assembly and the construction working face are connected in a sealed mode. The underwater operation sealed cabin can be suitable for the construction effect of equipment such as aship in an underwater area, a sealed waterless space is provided for construction operation, and when the underwater operation sealed cabin is applied to underwater area operation of the ship, efficient maintenance of the ship