Abstract: Based on the electromagnetic scattering model, an algorithm of deception jamming for Inverse Synthetic Aperture Radar (ISAR) aerial target is proposed. The simulated data of electromagnetic model is utilized to modulate the ISAR echoes, and thus the scattering characteristics of the target, such as shading and multiple scattering, can be simulated. Besides, the motion characteristics, such as translation and attitude, are also included. These ensure the fidelity of the false target. The proposed method requires less computation amount and is capable of real-time realization. Simulation results verify the effectiveness of the algorithm, and the computation complexity of the algorithm is also analyzed.