飞机装配容差分析可以预估实际产品能否满足设计要求，在优化制造方案与容差分配方案、保证飞机装配质量、降低成本、缩短研发周期等方面起着非常重要的作用。本文在整理飞机装配容差分析工作流程的基础上，对飞机装配容差分析关键技术进行了研究，包括如何定义设计基准体系、如何选用容差累积计算方法等。

Aircraft assembly tolerance analysis may predict if the actual product can meet the design requirements. It plays an important role in aircraft assembly quality assurance, cost reduction and development cycle time reduction etc. Based on compiling aircraft assembly tolerance analysis process, aircraft assembly tolerance analysis key techniques are researched including how to establish datum system and how to select tolerance stack analysis method.