Abstract: As an important part of aero-engine, the operating condition of the lubricating oil system has an important impact on the state, performance and service life of the engine. The research on fault diagnostics and health monitoring technology for lubricating oil system has always been an important dimension of aero-engine health monitoring. The current research status and progress in various aspects of fault diagnosis and health management technology for aero-engine lubricating oil system were summarized, and the future research directions in the field were discussed.