KEYWORD: the ship lift platform of steel structure; loading test; load-bearing capacity; stress test ABSTRACT: With the development of marine transport, ship timely maintenance and repair of performance as one of the main factors affecting the efficiency of transport. Ship lift platform of steel structure provides appropriate maintenance and docking capability for marine areas, while steel platform has many advantages: for example, moderate stability, good earthquake resistance capacity and reasonable load-bearing capacity. The paper presents a project example, through the detection of a ship lift platform structure reinforcement engineering overall quality, and using a simplified model combined with the calculation of load testing method, it can determine whether the ship meets the requirement of platform. Marine transport is the main mode of transportation in international trade, countries all over the world are making great efforts to expand port scale, and actively build and develop their own fleet, therefore ships can continue normal transport links developed advanced maintenance. This embodies the important place of ship lift platform. Because of light weight, good toughness, convenient construction and good rigidity and other characteristics, the steel structure of ship lift platform are widely and frequently used. Since the platform structure often soaked by seawater causing serious corrosion, which greatly affect the overall stability of the steel structure of ship lift platform. So as to avoid sudden failures and accidents of the ship lift platform, we must draw attention to the steel structure of ship lift platform security and checks on a regular basis. This paper describes a detection of a ship lifting platform structure reinforcement engineering overall quality. By using the simplified model method, calculating and analyzing the structure in the case of theoretical load, through ship field loading tests , determine whether the structure in line with bearing capacity standards. then it can providing a reference for other similar ship lifting platform structure reinforcement engineering.