The concept of oblique wing configuration provides notable advantages in aerodynamic performance, encompassing the wider speed range, the extended flight envelope, the enhanced multi-mission capabilities. However, the coupled aerodynamic and flight dynamic characteristics remain a major obstacle to the practical implementation of the layout. This paper reviews the development history and the performance benefits of the oblique wing concept firstly, then discusses the significant cross-coupling phenomena of the aerodynamic and the flight dynamic during the switching of sweep angle in the transonic phase. Furthermore, the associated key technologies of coupling analysis are analyzed in depth. To reveal the underlying mechanism of stability issues, it is pointed out that the integration of the unsteady aerodynamic model based on hybrid RANS/LES methods and the multi-rigid-body flight dynamics model is necessary.