Abstract: The key technology of the traditional aircraft engine assembly process execution system is completely detached from the process and design stages, resulting in low resource utilization. In order to solve this problem, a new key technology of the aircraft engine assembly process execution system is proposed. Firstly, access the process execution data of the aircraft engine, then calculate the correlation degree of the process execution data, and finally execute the task instructions of the assembly process system, so as to achieve the key technology of the new aircraft engine assembly process execution system. The comparison test is designed, and the test results show that the technology has better resource utilization, can better complete tasks, and improve the overall performance of the system.