Abstract: To the characteristic of the tool of cross wedge rolling, the modeling method and structure about information model of CAD/CAPP integration for the tool of cross wedge rolling based on feature were presen-ted. And with this information model a typical and symmetrical tool of cross wedge rolling was analyzed and instantiated. The results indicated that the basic compositive structure of tool was reflected in this information model of feature, as well as the machining technical information for tool of cross wedge rolling was described integrality.