随着航空航天的发展，空天融合、高超声速飞行对力学提出了新的挑战和基础科学问题，为加强力学面向国家重大需求开展目标导向的基础研究，在国家自然科学基金力学学科“十四五”发展规划战略研究专家组的建议下，国家自然科学基金委员会在数学物理科学部力学学科新增了“航空航天力学”一级申请代码。本文简要介绍了“航空航天力学”申请代码设置的背景和过程，着重对资助内涵与范畴以及重要的研究领域进行阐述，希望帮助相关领域科研人员了解航空航天力学代码设置情况以及需要关注的研究领域和方向，以便根据航空航天力学下设二级代码和研究方向，及时更新自然科学基金信息系统中个人研究领域并进行项目申请。

The development of aerospace， including the integration of space and universe， hypersonic flight， etc.， has presented mechanics with new challenges and fundamental scientific problems. To enhance object-oriented fundamental research in mechanics to meet major national requirements， National Natural Science Foundation of China （NSFC） has introduced a new primary application code of “Aerospace Mechanics” within the mechanics discipline of the Department of Mathematical and Physical Sciences， based on recommendations from the 14th Five Year Plan Development Strategy Research Committee of the Mechanics Discipline. This article provides an overview of the background and process of introducing the application code “Aerospace Mechanics”. It also explains the connotation and funding scope， as well as key research areas. The goal is to assist researchers in understanding the establishment of aerospace mechanics code， as well as the research areas and directions they should focus on. It is expected to guide researchers to update their personal research fields and submit proposals in the natural science foundation information system， based on the sub-codes and research directions in aerospace mechanics.