Abstract: In the in-orbit shock monitoring, the installation base made of nonmetallic materials such as polyimide may reduce the resonant frequency of the shock sensor installation, resulting in the linearity error of the sensor’s sensitivity. In view of that problem, the installation base made of aluminum alloy is designed, and the sensitive calibration tests of the shock sensor without the installation base and with the installation base made of polyimide/ aluminum alloy are carried out, respectively, to verify the extent of the influence of various installation ways on the sensitivity of the shock sensors. It is shown that the natural frequency increases significantly when the installation base is made of aluminum alloy. The error of the sensitivity of the shock sensor on the aluminum alloy base is as small as 5%, much lower than that on the polyimide base, and the former can successfully meets the requirement for the measurement error limit.