Shipborne satellite communication antenna and communication method of shipborne satellite communication antenna

The invention discloses a shipborne satellite communication antenna and a communication method of the shipborne satellite communication antenna. The shipborne satellite communication antenna comprises a first reflecting surface, a feed source, an orthogonal mode coupler, a frequency converter, an antenna mainboard, a pose motor and pose determination equipment, the orthogonal mode coupler is respectively in communication connection with the feed source and the frequency converter, the feed source is in communication connection with the first reflecting surface, the frequency converter is in communication connection with the antenna mainboard, and the antenna mainboard is respectively in communication connection with the pose determination equipment and the pose motor; the first reflecting surface is a reflecting surface obtained by processing an aluminum plate by adopting a spinning process; the pose determination equipment is used for determining pose information of the shipborne satellite communication ante