Abstract: Shellfish is rich in protein, moisture, fat. It leads to the propagation of microorganisms that cause spoilage easily. Therefore, shellfish preservation technology is an important research direction. From the physical, biochemical, sensory change of shellfish in the preservation process, this article summarizes 4 kinds of shellfish storage preservation techniques including hypothermia preservation, modified atmosphere preservation, radiation preservation and biological preservative preservation, then analyzes the advantages and disadvantages of each technology, to choose the most appropriate preservation methods in practical applications for different external conditions. The current problems of shellfish preservation process are pointed out, and the future development of shellfish preservation is prospected. preservative preservation