In order to solve the problems of scattered and isolated R & D and design resources, low sharing degree and low collaboration efficiency among group manufacturing enterprises, affiliated enterprises and factories, based on the indepth study of the connotation and characteristics of R & D and design resources, an R & D and design resource information model of group enterprises is established based on the concept of object-oriented and semantic knowledge, The software resources of a cloud manufacturing platform are described. Finally, the attribute extraction of an enterprise software resource list information text is carried out to realize the application and verification of the resource information model. The information model established in this paper classifies and defines the internal and external resources of the group enterprise uniformly and effectively, and realizes the dynamic scalability and automatic inheritance of resource dimensions, attributes and descriptions.