With the improvement of machine tool processing performance and tool cutting performance

high efficiency and high precision machining of aviation structural parts becomes possible. There are many thin-wall features of aviation structural parts

which are prone to deformation during the milling process. Therefore

the prediction and control of aviation structural parts deformation is an urgent problem to be solved in the field of machining. Through summarizing the characteristics and processing difficulties of aviation structural parts

the forming mechanism of machining deformation is deeply analyzed. This paper summarizes the milling force model that is most critical to processing deformation

and explains the research progress of residual stress and deformation prediction of aviation structural parts. Machining process optimization

numerical control compensation technology and high-speed cutting technology are the main strategies to realize the deformation control of aviation structural parts. Finally

the future development is forecasted.