The radar cross section (RCS) of a photoelectric turntable through software simulation. Based on the principle of high-frequency locality of scattering, the RCS prediction of the target is completed. Simulate the RCS of the photoelectric turntable in the S, C and X bands, under 0~3 incident residual angle. Decompose the complex optoelectronic turntable, study the RCS characteristics of each part, and carry out stealth design of the optoelectronic turntable. A simulation analysis was performed on the turntable after the stealth design was completed. After the stealth design, the proportion of RCS with an average value greater than 0.5 m² was approximately 18.18%. The stealth characteristics of the photoelectric turntable were significantly improved.