The development of virtual simulation teaching resources and platforms based on VR/AR technology is an important means to carry out practical teaching in many disciplines. Based on the famous Unity 3D engine, this paper develops a complete set of virtual simulation teaching platform for civil aviation engines using the development kit of Vuforia. The platform includes functional modules such as principle analysis of engine system, demonstration video of engine component structure, disassembly training of engine components and AR resource library. Through practical teaching application, the platform has achieved good results in both "teaching" and "learning", and solved the dilemma of abstract expression in "teaching" and dull understanding in "learning", which is worthy of further promotion.