The field of operation and maintenance support for commercial aero-engines （hereinafter referred to as “engines”） involves a wide range of data sources and types. In order to collect, manage and apply these data reasonably and effectively, and maximize the value of the data, it is necessary to design and construct an engine operation and maintenance support data management system in the future, establish the ability to collect, process, and apply operation and maintenance support data, so as to better provide operation and maintenance support services for the engine after delivery, and also provide important data support for engine design optimization, process improvement, test flight, etc. Based on international standard SX000i and combined with the characteristics of engine operation and maintenance support field, this paper studies and designs the overall conceptual architecture of engine operation and maintenance support data management system, and further expounds the system’s functional architecture, technical architecture and system interface, which lays a theoretical foundation for the development of engine operation and maintenance support data management system in the future. It provides support for the exchange and feedback of multi-source and heterogeneous operation and maintenance support data between stakeholders after the engine is put into operation.