The work aims to ensure the quality of squid in the cold chain transportation. The deterioration mechanism of squid was summarized and its quality parameters were characterized. The research progress of the preservation technology of squid was summarized respectively from three aspects, such as physical preservation, chemical preservation and biological preservation, and the current limitation of preservation technology of squid was analyzed. The development suggestion of its future preservation technology was proposed. The application of compound technology in the preservation of squid has become an inevitable trend, and squid preservation technology also tends to adopt biological preservation technology.