This paper reviews the development of air induction system of supersonic fighter,expounds some integration design problems of inlet and mainly analyzes the integration design characteristics and excellent performance of the foreign advanced active fighter's air induction system on layout style, structure and the control of boundary layer. All the analysis is based on the consideration of engine's stability. Finally, to the developing or developed fighter of our country, some useful conclusions and inspirations to resolve the stability problems of propulsion system are proposed.