Abstract: Aiming at the problem that wind turbines cause significant interference to surrounding radar and other equipment, This paper introduces a modeling approach for wind turbine blade echoes in LFM signal-based radar systems, utilizing the superposition of scattering points. Considering the complex scattering characteristics of wind turbines, a hybrid modeling scheme for wind turbine blade echoes was developed using FEKO electromagnetic simulation software. This scheme incorporates electromagnetic wave reflection coefficients at blade surfaces, combining the advantages of both scattering point superposition and FEKO simulation. The hybrid model enables calculation of scattering characteristics for wind turbine blades at arbitrary observation positions and analysis of micro-Doppler features in echoes, while integrating LFM pulse signals to better approximate practical engineering applications. Subsequently, This paper presents a method for modeling wind turbine blade echoes in radar systems based on LFM signals, employing scattering point superposition. Finally, the advantages and disadvantages of the proposed hybrid model and conventional scattering point superposition models were analyzed, providing theoretical support for constructing wind turbine blade echo models in practical engineering applications.