Based on the background of the post epidemic era, the development status of Chinese cold chain logistics market and the pain points of food cold chain logistics information traceability system were analyzed in this review, and the existing problems were discussed and summarized. Based on the blockchain technology, the construction of food cold chain logistics traceability system was also investigated, by using three dimensions of participant setting, system framework design and operation process optimization, and the specific implementation path of the newly constructed traceability system from three aspects of government, enterprise and consumer was expounded.