The invention belongs to the field of design of airplanes, and particularly relates to a single-curved surface wind screen nose integrated design method. The single-curved surface wind screen nose integrated design method comprises the following steps: extracting Catia forming parameters via design constraints of a nose, and establishing a nose parameterization surface model and generating curved surfaces in the following order: generating an upper main curved surface of one side of the nose, cutting the wind screen area of the upper main curved surface, generating a main wind screen curved surface firstly and then generating a lateral wind screen curved surface in the wind screen area, generating a transition curved surface between the main wind screen curved surface and the remaining upper main curved surface after the wind screen area is cut, generating an upper front curved surface on one side of the nose, and sequentially generating remaining curved surfaces, including a lower main curved surface, a lower rear curved surface and a lower front curved surface, on one side of the nose, and symmetrically generating curved surfaces of the other side of the nose. As the upper main curved surfaces are integratedly generated in the cutting manner, high order and continuity in curvature of the upper main curved surfaces are ensured, and integrated manufacturing is faciliated; in addition, the nose is enabled to have good aerodynamic characteristics and flow quality, so that oil consumption is reduced.