The invention belongs to the technical field of biology, particularly relates to a sample post office, and aims at solving the technical problem that exponential reduction of scientific and medical research values is finally caused by various problems that precious specimens are accidentally scrapped due to repeated freezing and thawing of existing biological specimens and the like. A motor protection bin is formed in one side of the motor set, a driving motor is installed in the motor protection bin and fixed to a motor installation plate, the bottom of the motor installation plate is fixed to the top of the body base plate, a plurality of air pipe connectors are fixed to the outer wall of the body base plate at equal intervals, and a rotating assembly is installed at the bottom of the body base plate. A first synchronous belt wheel is fixed to an output shaft of the driving motor, a second synchronous belt wheel is arranged on the top of the body base plate, and the second synchronous belt wheel is meshed with the first synchronous belt wheel. According to the invention, high efficiency of information and scientific research achievement conversion can be fully ensured while safe storage of biological samples is fully ensured, so that conversion of scientific research achievements is assisted.