Using the self-developed servo triaxial rock mechanics tester, the limestone samples under normal temperature were subjected to triaxial compression tests under different displacement rate loading and different stress rate loading conditions. The results show that: 1) at normal temperature, limestone is Under different stress rate loading or different displacement rate loading conditions, the original void compaction phase, linear elastic phase, plasticized strengthening section and failure section are experienced. 2) Under different loading modes and loading rates, the elastic modulus of the sample increases with the increase of loading rate, while the peak strain shows a decreasing trend; 3) the effect of stress loading rate on the physical and mechanical parameters of rock The displacement loading rate is obvious, which has certain guiding significance for practical engineering.