To evaluate the level of the ship design scheme, several major problems during the ship design virtual test and evaluation process have been studied and technology developed by CATIA virtual platform. Including: fast virtual test model for ship hull surface modeling, virtual modeling and assembly for ship equipment based on knowledge-based engineering, and virtual evaluation combined with ergonomics of the ship design scheme. The cost of the large physical test can reduced by using virtual test and evaluation to evaluate the ship design scheme. The test cycle is short, it is beneficial to improve the development and progress of the level of the ship design technology, and a reliable and practical way to test and evaluation of ship optimization design is presented.