This paper mainly researches the modeling problem of radar target polarization, proposes the use of a SolidWorks virtual assembly technology to construct the target geometry model, then calculate the software to calculate the target scattering matrix using FEKO electromagnetic modeling method. By using the method of typical ship targets, respectively and the target plane reflector geometry modeling, and the ship as an example, introduces in detail the polarization scattering matrix calculation, the calculation results show that the ship at different angle than the main polarization cross polarization change value difference is very large, the trend is basically consistent with the actual measurements. The modeling method of polarization characteristics of radar target proposed in this paper is important for improving the fidelity of target polarization model and simulation confidence.