It provides a standard storage capacity of 20000 to 94000 1.2mI/2.0ml cryotubes, allowing biological samples to be safely stored in low-temperature nitrogen environments ranging from -180 ℃ to -190 ℃. At the same time, it minimizes the physical workload of container operators, and the container can achieve automatic opening and closing of the lid. The sample storage inner cylinder can be controlled to rotate, and the freezing rack can assist in lifting and other related functions and controls. The excellent vacuum performance and operational control of the container provide assurance for the long-term and effective safe storage of biological samples.