Rudder system protection device used in ship launching process

The utility model discloses a rudder system protection device used in the ship launching process, and relates to the technical field of rudder system protection, the rudder system protection device used in the ship launching process comprises a clamping and protecting shell, the inner side of the clamping and protecting shell is hollow, two clamping plate assemblies are arranged above the clamping and protecting shell, and the clamping plate assemblies are arranged in the clamping and protecting shell. The two sides of the clamping protection shell are each fixedly provided with an L-shaped supporting plate through a bolt, and the two L-shaped supporting plates are each provided with a circular hole. The clamping protection shell is clamped to the two sides of a ship body, the clamping protection shell is prone to shaking and falling off, friction is reduced through the universal wheels at the bottom, ship launching is facilitated, the clamping plate assembly and the threaded clamping plate are loosened after