Based on the object-oriented method,according to the Enterprise model of Information Integrating,by means of the idea of Encapsulation and Inheritance,a common reference framework for Information Integrating of CIMS is presented. This kind of integration is not only used for the share information,but also ready for Function Integrating and the whole construction of CIMS. Moreover,the system developed based on this model can be reused for many times. The developing circle of CIMS can be apparently shortened,too.