Abstract: The engineering design of CARR is with complicated technology and interface.By enhancing the leaderships and clarifying the responsibility of every designer,all the quality assurance activities are effectively controlled by detailed process documents and operation documents in terms of technology and management.It is shown that the organizational structure we adopted is appropriate,the responsibility and authority are well defined to meet the design requirements and the corresponding duties are fulfilled.The quality assurance system is in conformance with the laws and regulations,and can meet the needs of CARR engineering design.It provides an effective guidance for the success of CARR engineering design.