Abstract: In cooperative application systems, flexible, convenient, and adaptable workspace awareness is an important means for raising collaboration efficiency of the group. In this paper, a model of workspace awareness processing in the cooperative system is presented. In this model, all objects are placed in a total set that is viewed as a generalized common place. In terms of the responsibilities of users and the object locations that users operate, the common place is divided into focusing place and affecting place. According to the proximity of different places, the strength of awareness between users is determined, and then the methods of collecting and sending awareness messages and understanding awareness messages are developed. In this model, the awareness messages are sent in terms of requirements and the traffic on the network is well controlled. This model provides an effective method for awareness processing and interface recoupling in the general cooperative application system.