Abstract: In order to meet the requirements of protecting aircraft parts in various external field environments, a type of lubricating grease for aircraft protection was developed using polyolefin synthetic oil (PAO) as base oil and aluminum stearate as thickener to prepare basic grease, and then adding tackifier under certain conditions. The performance of this prepared grease was evaluated comprehensively and the results show that this grease possesses excellent adhesion, rust protection, water resistance and low temperature performance, which can well meet the requirements of national military standard GJB 2095-94. Comparing with 3＃ ship grease used as an aircraft protecting grease presently, their water resistance and adhesion properties are similar, however, the rust protection property and low temperature performance of this prepared aircraft protection grease are much better.