This paper introduces all previous revisions of the code for the open-type wharf on piles based on the applications and development of it, emphasizes the contents and background information of the latest revision Design and Construction Code for Open Type Wharf on Piles (JTS 167-1-2010), and studies the open type wharf on piles’ durability design and the calculation and analysis on the wide bearing’s impact to the internal forces of the beam, using the method combining monographic study with physical model. It will help engineers better understand the code.