航天器力学环境预示对于总体设计、结构与机构分系统设计是至关重要的,特别是对于首发型号,往往缺乏相似型号的遥测数据参考,使得有效的预示成为地面试验方案和试验条件确定的主要依据.航天器在发射段需要承受覆盖全频域的动态载荷,不同频段的载荷和结构振动响应特性差异很大,很难用单一的分析方法进行准确预示.本文分别针对航天器发射力学环境的低频、高频、中频3个频段,介绍了国内外航天器全频域力学环境预示的主要方法及其工程应用的研究进展,并提出了我国在该领域亟需解决的关键技术. Spacecraft mechanical and environmental predictions are crucial for the overall design, structure and organization of subsystems. Especially for the first models, there is often a lack of reference to similar models of telemetry data, making effective predictions the primary determinant of ground test programs and test conditions Based on the fact that the spacecraft needs to bear the dynamic load covering the entire frequency range in the transmitting section, the load and the structural vibration response characteristics in different frequency bands are very different and it is difficult to accurately predict with a single analysis method.This paper aims at the spacecraft launch mechanics environment Low frequency, high frequency and intermediate frequency are introduced in this paper. The main methods of engineering mechanical environment prediction of spacecraft at home and abroad are introduced. And the research progress of engineering application is introduced. The key technologies that need to be solved in this field are put forward.