Morphing aircraft have extremely important application prospects in aviation， aerospace， weapons and other fields. The smart morphing and flight control technology is a comprehensive technology that includes multiple disciplines and applications. In this paper， the specific classification and characteristics of the morphing aircraft are summarized. The development status of the morphing aircraft’s deformable structure and intelligent materials is analyzed. The dynamics modeling and flight control technology of the morphing aircraft are studied. The application status of the deformation technology in the fields of micro air vehicles， unmanned aerial vehicles， hypersonic aircraft and missiles is summarized. Finally， the key technologies that need to be broken through urgently， such as global highly bionic and high-speed cross localization， structure and control coupling influence mechanism， intelligent materials and variant structure and drive integration， are identified.