Abstract:The study is on version storages issues of the version management in the product collaborative design. Based on the analysis of the current version incremental storage and complete storage technologies, this study poses a new version storage model of product collaborative design which will combine inverse incremental storage with complete storage. The storage structure of version is defined as a two-way version of the list according to their parent-child relationship, when the design process produces a new version, it will be stored in the list structure of version by the way of repeated iteration and insertion, in order to achieve the fast storage, save the storage space and improve the security of the version storage in the product collaborative design process.