Abstract: The preparation of the conductive secondary surface mirror with flexible Kapton substrate has been briefly discussed in this paper.The structure of multilayer insulation and the grounding method have also been illustrated. The measured data show f that te solar absorptivity and emittance of the SSM coated TO film are almost not changed. So the TO film on SSM surface will have no influence on its performance of thermal control.According to the application of multilayer structure on satellite and in order to compare the difference of controlling chargingperformance,the conductive and non-conductive type SSM have been used on outside of the structure for test.In simulated substorm environment the test results of seven samples indicate that the antistatic perfo rmance of SSM With To film is excellent compared with uncoated TO film SSM. When the sample with TO film is grounded, its surface potential. can be controlled below 100 volts and the discharging phenomena on surface are also repressed effectually.The experiment proves that the surface modification in combination with the grounding technology can provide the best effect on preventing satellite surface from charging/discharging.