For a manufacturing enterprise to be competitive in constantly changing market environment, it is necessary to adopt a new model called agile manufacturing by organizing Virtual Enterprise. Aimed at developing a product development process management (PDPM) system for Virtual Enterprise, modeling of product development process is discussed and a union information model is proposed using Object Modeling Technique. Based on the J2EE platform, a framework of PDPM system is built up with a three-tiered architecture, which consists of several Enterprise JavaBeans components to ensure compatibility, distribution, and flexibility of the system. A PDPM system prototype is developed utilizing JAVA and has been validated in a simulated virtual enterprise environment.