Abstract: In view of the fact that no existing control spectrum can be used as a reference for newly developed space products, the influencing factors for the shock response spectrum (SRS) are unknown, and experienced testers have to debug by trial and error to achieve the specified control spectrum, an SRS plan is designed in this paper by conducting abundant SRS tests to collect the spectrum data, and then the optimal fitting curves for different pendulum angles, cushions and waveform generator combinations are obtained by a proposed curve fitting algorithm. Then we gather all standard spectra, to establish the debug spectrum library. The effectiveness and the convenience of this library are demonstrated by practical engineering tests. In addition, by analyzing the effects of the pendulum angles, cushions, waveform generators, fixture weights and bolt numbers on the SRS, the debug method for the response spectrum testing machine can also be developed, for a faster determination of the SRS control spectra for space products, and the method can remarkably shorten the debug time, lower the testing risk, and provide a valuable reference for the SRS testing on the products in the next space station phase.