Within a shipyard, designers have their own design objectives and moreover apply different software on heterogeneous hardware platforms; nevertheless requested collabtive operation still remains in the comple design circumstance. The paper presents a data hub model to sovle this problem and improve effectiveness and efficiency for ship design. The model is simulation-driven and consists of two main parts, including data management and integrated simulation environment. The data management processes the simulation-based design data storage, access and transformation. The integrated simulation environment bridges the gap among the multidisciplinary domain including CAD geometry, CAE, virtual navigation, kinematics and dynamics simulation. In addition, an application is developed to evaluate the validity of data hub model for ship design.