Abstract: The integration of numerical simulation technology and equipment research is getting higher and higher, and numerical simulation system development is in the direct of large-scale, complex and service-oriented. Numerical simulation research of three important aspects of prediction, evaluation and optimization of the overall performances of ships is highly dependent on foreign commercial simulation software, and it is urgent to integrate the multidisciplinary fusion method and data knowledge engineering to carry out independent research and development of numerical simulation system. In order to achieve this goal，this paper summarizes the experience and lessons in the development of industrial software, and puts forward the concept of "mass creation and sharing", collaborative application of knowledge and intelligence-oriented numerical simulation system for ship overall performance, so as to realize the remodeling of ship general performance research and development model.