For the shipway exceeding the design service life, we shall carry out safety assessment to analyze the ship-building and repairing ability of the shipway. The assessment is to conduct checking calculation of the structural members under present working load, including the stress, reinforcement or displacement of the structure,combining with the site investigation and detection to carry out a comprehensive analysis. This paper expounds the safety assessment of shipway based on an example of shipway engineering, which may serve as a reference for the assessment of other structures.