As a kind of non-pole structure, internal force of structural joints of wharves can not be calculated according to Design Code for Concrete Structures of Port and Waterway Engineering (JTS 151-2011)” directly.Based on the continuous mechanism theory, the finite element method is good at analyzing the stress of reinforced concrete structure. By modeling in ROBOT, the whole wharf is simplified as a continuous beam with elastic support.Furthermore, the external force applied to structural joints and stress distribution inside the structure are calculated.The reinforcement and protection design according to results obtained and related codes are also presented. Since 2008, this design method has been applied to practical engineering with good effects.