Objective The aim of the test was to simulate the use status of cushion package material during the transportation of aerospace products. Methods The mechanics and rebound performance of the normal and high-low-temperature cycled polyimide foam were investigated and compared with preloading and no preloading samples. Results After treated with preloading, the springback amount of the normal and high-low-temperature cycled polyimide foam pieces was 97. 15% and 96. 73% , respectively; for the two groups of static compression test, after storage under static compression and constant load, the polyimide foam without preloading treatment showed residual deformation of 8. 83% and 9. 86% after normal and high-low temperature circulation processing, while the residual deformation after constant deformation storage was 3. 69% and 4. 78% for the foam cushion subjected to pre-compression processing, which was decreased by 5. 14% and 5. 08% compared with the specimens without preloading. Conclusion High and low temperature alternation did not largely influence the springback situation of the specimens; the two groups of specimens with or without preloading presented different resilience, after preloading process,the polyimide foam pore structure showed proper residual deformation, resulting in more compact structure of polyimide foam,which hardened the material, and increased the load bearing ability, therefore, the resilience was better.