More and more countries such as America, China, Japan, England and Taiwan have legislated for intelligent manufacturing since the concept of industry 4.0 was presented at Hanover Fair 2013. However, one of the main obstacles is that many enterprises regard it as an ambiguous notion, even if they understand, most of them tend to observe other successful cases before they implement it. In this paper, by researching 12 international enterprise models, I attempt to show that how intelligent manufacturing could be introduced into traditional industries by analyzing their backgrounds, methods and success factors. This study aims to contribute to manufacturing industries by guiding them on a systematical path.