摘要：Generation of Product Concept needs to give full play to the designers' innovative potential and collab.rative work of experts in different fields. However, the collab.rative innovative capabilities of geographically distributed designers are often limited and hindered by space and time. Therefore, on the basis of the requirements analysis of Internet based collab.rative conceptual design and the research work we have done, this paper proposes the overall framework of supporting collab.rative conceptual design on Internet. Based on this overall framework, the authors further put forward collab.rative conceptual design process model that includes three stages: concept generation, concept communication and optimal product concept selection. At the end of the paper, the experiment environment of collab.rative design is described. The overall framework and collab.rative conceptual design process model proposed can take full advantage of Internet and give full play to experts' experiences and wisdom, so that the rapid development and innovative design of product can be provided with effectively and efficiently implemental mode and support on Internet.