To meet the requirement of all-weather operation for 90% vessels in ro-ro wharf of Ningbo Meishan port,the elevation of wharf and approach jetty is low.Because of the large wave in the engineering area,the master load of the jetty turns to be the wave load instead of the vehicles load.To resist the uplifting,down-falling and horizontal thrusting forces from the wave,the design adopts the bi-directional-loaded prestressed girder,the front-weak & back-strong pile bents and wave load transmitting device to realize the design of pile-girder type approach jetty with low top-elevation and large wave.All indices meet the requirement of the standards.The design method and experience are summarized.