In order to realize centralized organizing and management for aircraft engine design knowledge

formulation methods of ontology-based knowledge organization model are presented.This paper studies the structure

design criteria

formulation methods and mapping techniques for knowledge ontology for aircraft engine design and analyzes the characteristics of ontology-based knowledge organization model.The implementation framework of ontology-based knowledge organization model for aircraft engine design was given.The research result is of reference value to application research of knowledge management to aircraft engine design.