Abstract: In the extreme electron radiation environment of space, the penetration of high-energy electrons through the metal shield will lead to the deep dielectric charging of slip ring insulating components, which will induce the insulation failure of the Solar Array Drive Assembly (SADA), and even lead to the failure of the whole satellite. The material, structure and configuration scheme of the shielding shell will have a direct impact on the deep dielectric charging of the slip ring insulating components. Therefore, it is necessary to deeply study the shielding effect of the shell and improve its protective effect, so as to reduce the possibility of discharge accidents. In this paper, a 3-D deep charging model of slip ring insulating components is established and the 3-D distribution of electric field and potential of slip ring insulating components is obtained. The effects of metal shielding material, shielding structure, and double-layer shielding on the maximum electric field of slip ring insulating components under electron irradiation are studied. The results show that, under the same area density, high atomic number metal materials can better shield high-energy electrons than low atomic number, but high atomic number metal materials have higher photon transmittance due to bremsstrahlung radiation and are likely to cause damage to insulating materials. The locally strengthened shielding structure can further reduce the electric field distortion in the slip ring insulating components under certain quality. On the basis of 1 mm aluminum shielding quality, the maximum reduction is about 25%. When using double-layer metal shielding, the metal materials with high atomic number inside the slip ring insulating components is more conducive to the shielding of high-energy electrons. The reason is that when the low atomic number metal material is on the outermost side, the energy of high-energy electrons will first be reduced, so as to make better use of the characteristics of high atomic number metal materials with high backscattering coefficient.