Abstract: Blade sections correlates closely with marine propeller hydrodynamic performance, including loading status, efficiency, cavitation, and other factors, and there is a direct relationship between camber lines and the loading status of blade sections. For the sake of designing camber lines of blade sections with specified loading, a lift distribution is first defined as loading description. A parametric method is then proposed for lift distribution expression, after which the camber line is designed for the specified lift distribution through Newton-Raphson iteration. Finally, the flow characteristics of camber lines are calculated with 2D vortex lattice method. The results indicate that the lift distribution of camber lines designed by combining Newton-Raphson iteration and vortex lattice method matches the given one. Furthermore, certain parameters of the lift distribution are modified to generate camber lines called SJ series for the future design.