In order to reveal the law of fatigue damage caused by freeze-thaw cycles on foamed asphalt and emulsified asphalt cold recycled mixtures, a freeze-thaw cycle test program was designed, based on split strength test, unconfined compressive strength test, and penetration shear test To study the effects of freeze-thaw cycles on the deterioration of the mechanical properties of foamed (emulsified) asphalt cold recycled mixtures. Using industrial CT non-destructive testing technology as a research platform, study the effects of freeze-thaw cycles on the microscopic void levels of foamed (emulsified) asphalt cold recycled mixtures. The influence law of the distribution and the diameter of the gap. The results show that the freeze-thaw cycle significantly reduces the mechanical properties of the foamed (emulsified) asphalt cold recycled mixture. In general, the foamed asphalt and the emulsified asphalt cold recycled mixture exhibit basically the same mechanical properties. The emulsified asphalt is colder than the foamed asphalt. Recycled mixture has better resistance to damage. As the number of freeze-thaw cycles increases, the average void diameter and maximum void diameter of the foamed (emulsified) asphalt cold recycled mixture increase, the number of large voids increases, and the proportion of small voids and the number of voids decrease. As the average void diameter increases, The splitting strength and penetration shear strength of foamed (emulsified) asphalt cold recycled mixture decrease exponentially. Under the action of freeze-thaw cycles, the decrease in the number of microvoids in the foamed (emulsified) asphalt cold recycled mixture and the increase in the average void diameter are one of the main reasons for the degradation of its mechanical properties.