Abstract:Digital operation support plays an increasingly important role in leading domestic manufacturers of civil aircraft to improve their market competitiveness and expand economic efficiency. In-depth study of domestic and international digital operations to support advanced technology, experience and development trends, for the existing models ARJ21 and C919, combed the eight business scenarios of domestic digital operation support, reconstructing the digital operation support business process suitable for the development of domestic civil aircraft. Fully consider the development of digitalization, information technology and operational support requirements, and the practicality of the results, based on BPMN2.0 business process modeling symbol standard and Activiti5 process engine, build business process management and simulation system, digital operation of domestic civil aircraft Support business processes for electronic management, and simulate the typical maintenance task analysis operation method business process.