This project belongs to the field of avionics engineering and manufacturing technology and is an innovative project of China Institute of Aeronautical Radio Electronics. With the upgrading and progress in the field of civil aviation airborne electronics technology, the complexity of the system continues to increase. High integration and miniaturization have resulted in an increase in potential fault sources, while the number of fault monitoring points that can be set has been reduced, reducing the diagnostic and testing capabilities of faults. This poses huge challenges to the manufacturing, use, safety and maintenance of the system, and the cost of using and maintaining the system far exceeds the manufacturing cost. Maximizing the ease of system maintenance and optimizing system performance (as well as cost and size) are often two contradictory goals. Statistics from the Federal Aviation Administration show that more than half of aviation accidents around the world are caused by aircraft system failures and aircraft loss of control. At the same time, airlines need to pay huge amounts of money every year for aircraft logistical support. Statistics show that on average, every 12 hours of logistics maintenance can ensure one hour of safe flight time. Therefore, in the current competition among airlines, aircraft maintenance has received increasing attention. The emergence of on-board maintenance systems (OMS) helps ground maintenance personnel carry out fault detection and daily maintenance of aircraft more quickly and effectively, making the maintenance of aircraft in route services more convenient and quick, and realizing aircraft ldquo; condition-based maintenance rdquo;, thereby improving aircraft flight efficiency and reducing maintenance costs. As the benefits generated by OMS become more and more significant, it has become an indispensable system in modern civil aircraft. After years of civil aircraft research and development practice, foreign countries have gained rich experience in OMS development and formed a relatively mature aircraft maintenance concept. OMS is still a relatively new field in China. There are very few suppliers with the ability to develop OMS, and its functions are relatively simple, and the system has almost no adaptability. Therefore, the main OMS of domestic aircraft in service and under development are monopolized by foreign manufacturers. The design iteration of avionics systems will inevitably lead to changes in maintenance requirements, which will continuously affect the design of the OMS system. At present, when domestic avionics system suppliers conduct system development, most of them develop their own systems, lacking comprehensive communication and systematic considerations. Therefore, there is no standardized set of member system specifications for OMS in China, which makes the development of OMS only specific projects and difficult to be reusable. In this context, it is of great significance to carry out research on OMS system configuration technology. This project& ldquo; Functional Automation Configuration Technology for Airborne Maintenance Systems& rdquo; In view of the problems of changing OMS development requirements for multi-model projects, increasing complexity of member systems, poor OMS adaptation capabilities, low reusability, and insufficient level of development automation, based on the ARINC624 "OMS Design Guide", modular design is adopted. The concept of design decouples OMS system functions in layers, driven by the maintenance logic of member systems, taking the maintenance model as the hub, and aiming at the configurable maintenance functions and system functional architecture, an automated configuration design plan for OMS functions with universal effects is proposed. This solution standardizes the maintenance model architecture of member systems and solves the clutter of member system maintenance models. An automated construction and fusion method for member system maintenance models is proposed to solve the problem of low efficiency in manual construction and fusion maintenance models. An implementation scheme to support configurable maintenance functions is designed, which improves the on-site configurable capabilities of OMS system functions and the reusability of functional software. A highly adaptable OMS system functional architecture has been designed to improve the adaptability of OMS system design. The project research and results can significantly improve the adaptability, reusability, and development automation level of the civil aircraft OMS system, effectively shorten the OMS development cycle, and greatly save development costs