As the new technology of test and diagnosis, condition monitoring and health management has been the core system of autonomous logistics of military equipment, and it has important role in ensuring the combat readiness, improving the operational effectiveness and reducing the total cycle cost of equipment. Focused on the condition monitoring and health management of active electronically scanned array antenna radar, the layered architecture of health management is constructed. By information fusion and health assessment of the character of radar range and antenna side-lobe level, the condition monitoring and health management of AESA radar is realized.