Cold storage with extreme fast cooling function

The invention relates to a complex temperature controlling technology, in particular to a cold storage technology of egg embryos in an embryo cooling room in the production process of influenza vaccines and provides a cold storage with the extreme fast cooling function. When fans start, an air flow passes through an evaporator group to form a low-temperature air flow, the low-temperature air flow passes through electric air valves, enters an air supply narrow path 5, flows into a refrigerating chamber through a front air filter 12, flows into an air return narrow path 6 through a back air filter 11 and circulates back to the fans through a hole formed in a fan plate 4 so as to realize refrigerating circulation. According to the cold storage provided by the invention, when a first fan group starts, a second fan group is closed, an electric air valve evaporator group corresponding to the second fan group is simultaneously closed, the electric air valve corresponding to the first fan group is opened, and the fir