With the advancement of the science & technology and the improvement of customers' requirements, the structure of the modern products becomes more and more complex, and the functions become more and more powerful, and the technology becomes higher and higher. The mode of traditional product development can not meet the requirement of the modern product development any more. So today, the mode of multi-organizational and multidisciplinary product cooperative development based on the process technology is receiving more and more attention from industry. In this dissertation, the interrelated theory and implement technology are researched, sponsored by two projects (Accounting for Product Life-cycle Management and Developing Life-cycle Management System for Product Development) of Anhui Jianghuai Automobile Co., Ltd.First of all, the conceptions, background, internal and overseas status quo about the process management of product cooperative development are studied and analyzed in this dissertation, and then its characteristics and requirements are summarized, followed by the discussion on the deficiency, the progress trend and the key techniques in this area. All above form the basis for the study in this dissertation.The process planning of product cooperative development is the base of the process management of product cooperative development. So by analyzing the characteristics and requirements of the process planning of product cooperative development, a process planning method of product cooperative development based on multi-DSM is put forward. This method can avoid effectively the useless reiterations of product cooperative development, shorten the product development cycle, improve the development quality, and reduce the development cost.Task scheduling of product cooperative development is a typical resource optimal allocating problem based on constraints. After studying the related existing researches on such problem, a method of task scheduling of product cooperative development is advanced on the basis of multi-objective optimization. The research issues of this method include the mathematic modelling of task scheduling based on multi-objective, the modeling of structure of comprehensive evaluation indexes in task scheduling and the method for calculating the evalutation indexes, and a task scheduling algorithm of product cooperative development based on hybrid Particle Swarm Optimization (PSO).Process modeling of product cooperative development is very important for the process management of product cooperative development, which is not only the intermedium among the product developers, but also the base of process optimization and the key for process monitoring, the process monitoring mothed based on the model of the product cooperative development make developers and managers get all kinds of information easily. So a process modeling method based on Holographic Workflow-net is developed in this dissertation. The primary feature of this modeling method is holography, namely the organization information, time information, task information and