Through the studies in the previous chapters, the following main conclusions were obtained: with the increase of stress rate, the plastic deformation of rock salt per cycle decreases, and the deformation of rock salt is distinguished into loading deformation which is affected by the stress rate, and creep deformation which is basically unaffected. In the rock salt creep–fatigue research can be found that there is an interaction between creep and fatigue, fatigue can accelerate the creep deformation, and in turn the hardening effect of the creep stage will reduce the residual strain of the rock salt, the final destruction of the rock salt in the creep–fatigue loading is the result of the dual action of creep and fatigue, when the creep-induced grain perforation cracks and fatigue-induced cracks along the grain boundaries of the fracture or grain perforation fractures will meet and converge, will result in the destruction of the rock salt. Changes in the upper stress limit also have a significant effect on the damage of rock salt specimens. The insight given by the above study is that the special features of the creep–fatigue mechanical ontology model for rock salt and other creep and fatigue ontology models should take into account the effects of creep and fracture extension on fatigue as well as the effects of loading and unloading history on creep. In the following, the salt-rock creep–fatigue constitutive model will be derived and validated for this feature based on some of the laws obtained from the tests.