The invention discloses a method for enabling an aircraft to meet strong attitude constraint conditions. The method comprises steps as follows: acquiring constraint conditions of a local pitch angle phi and a local roll angle gamma d; determining an amplitude limiting strategy of an attack angle instruction according to the constraint condition of the local pitch angle phi; determining an amplitude limiting strategy of a heeling angle instruction according to the constraint condition of the local roll angle gamma d. According to the method, an attack angle and a heeling angle in a guidance instruction are directly subjected to amplitude limiting, and accordingly, the aircraft can be indirectly ensured to meet the strong attitude constraint conditions in the flying process. The method is simple and practical and has a very good application effect.