Aerodynamics design is one of critical technologies for single-aisle narrow body airliner (SANBA), which has a significant impact on aircraft performance. Aerodynamics design technologies of SANBA were summarized and analyzed preliminarily. The main methods are case study of typical aircraft and statistical analysis and comparison of relevant data, including wing aerodynamic design, high lift device, winglets, CFD technologies, etc. In the part of wing aerodynamic design and analysis, the importance and requirements of the design were summarized firstly; then, the aerodynamic design examples of typical aircraft wing and the statistical data of main parameters were given, including airfoil, plane shape and aircraft performance parameters; the design and research topics of the aerodynamic design for the inner part of the wing-wing root area, the integrated design of the nacelle-hang-wing were listed and analyzed. In the lift device, design difficulties and problems were analyzed firstly, and then the high lift device design of Boeing 737 and A320 generations was statistically analyzed, including the type and the main parameters of leading edge and trailing edge lifting device. In the winglet section, the drag reduction data of fusion winglet and double-feathered winglet and the improved spanwise lift distribution were presented. Finally, the development and application of CFD technology in Boeing, Airbus and China were briefly introduced.