Wharf ship boarding ladder capable of being adjusted all-directionally and automatically

The invention discloses a wharf ship boarding ladder capable of being adjusted all-directionally and automatically. The wharf ship boarding ladder includes a landing platform, a ship boarding inclinedladder and a ship boarding platform. The top of the landing platform is provided with a landing supporting platform. Two straight lines on both sides of the landing supporting platform are provided with rolling wheel bearing guiding rails. The rolling wheel bearing guiding rails are internally provided with moving platforms. The two sides of each moving platform are provided with rolling wheel bearings to make the moving platform only be capable of sliding front and back along the rolling wheel bearing guiding rails on the landing supporting platform without being separated from the landing supporting platform. One end of the ship boarding supporting platform is hung out of a gunwale and is connected with the upper portion of a 7-shaped rotation shaft in a hinged mode. The 7-shaped rotation shaft can movably rota