Development process for complex products such as automobile involves engineering changes that require redesign or adjustment of the products. Efficient management of engineering change is crucial for the productivity of new product development. Despite the importance of reusing past engineering change case, extant supporting systems remain mostly as document management or workflow systems that are insufficient in the reuse of various knowledge in the engineering change. The purpose of this paper is to design a case retrieval mechanism to facilitate the reuse of the knowledge generated in the engineering change. Past engineering change cases are represented using Semantic Web technology and Caes-Based Reasoning(CBR) is used to retrieved cases and target cases are simulated with other various mechanisms.