The Airspace Reject Cognizance System is designed to solve the problem existing in the management of unqualified products in a certain aerospace industry in daily work. The system is highly expandable and also it has uniform management platform which can carry out overall managements such as: the unqualified product trial, the unqualified product prevention, the zero return request and the basic establishment. Using WebService to integrate external systems, the result of feedback data from Airspace Reject Cognizance System can be analyzed. The test and operation show that this system is feasible and reliable.