Abstract: The nature of glacial dynamic refrigeration is heat conduction in companion with the release and absorption of latent heat. The heat transfer rule is the key to large-scale ice making, while few were reported in the literature about thermodynamic analysis in preservation system with natural cool resources. The authors studied glacial thickness fluctuant curve with simplified test device and took heat transfer into account. In theory, the authors developed the complete mathematical model and indicated that the sum of thermal and latent heat flux between water and ice layer was equal to the heat of convection between ice and environment. In comparison with experimental curve, the theoretical model can reveal the real process of one-dimensional dynamic cool storage of ice. Simulating three-dimensional dynamic refrigeration should be considered in the further study.