This paper introduces the application of a second generation expert system in blankinng technology. Depending on the empiiical knowledge of domain experts and field literature, an expert system can play an important role in the field of blanking technology. An object oriented blackboard modal is given which can realize hyhiid knowledge representation, such as prodnction roles, frameworks and procednres. This paper mainly discusses the structure of the blackbom-d model mid hybrid knowledge representation in blabking technology expert system. Since strip layout is a crucial and deteimining part in blanking technology, given here is an exmnple of a blackboard modal supporting hybrid knowledge representation about the strip layont process.