The roll-on process of the ship loader is studied with the finite element method in this paper. The principle and the scheme of the parametric modeling for the ship loader have been discussed. The vibration frequency and the vibration mode of the ship loader in the roll-on process have been researched, and the weaknesses in the structure of the ship loader have been founded. Based on the above discussion, the reinforcement scheme of the ship loader has been put forward, and the vibration mode and frequency of the strengthened ship loader in the roll-on process have been analyzed. With the comparison of the original one, the anti-vibration performance of the strengthened ship loader has been improved, the reinforcement scheme has been proved to be a worthy one in the roll-on process.