Abstract: Rock mass failure is a result of internal damage accumulation and development, and it is exacerbated in the condition of seasonal temperature change because the enhanced strength degradation of rock mass in cold regions causes a great increase in the probability of rock mass instability. Hence, it is necessary to study the cyclic freeze-thaw deterioration of damaged rock. This paper describes an experiment of sandstone samples in the conditions of preload damage as well as no load damage in the freeze-thaw process. For the specimens that had experienced freezing, thawing, and drying at low temperature, we measured their longitudinal wave celerity and rock resistivity and analyzed the degradation degree of these two parameters. Results show a quadratic relationship of the celerity versus the number of freeze-thaw cycles and a logarithmic relationship of the resistivity versus the cycle number. And in the same testing conditions, the changes in the resistivity are greater than those in the celerity. This means that resistivity is an evaluation index more sensitive to rock physical properties and it is a useful index for evaluation of the stability of rock structures in cold regions.