Sanitary sample low-temperature preservation device

The utility model belongs to the technical field of sanitary samples, and particularly relates to a sanitary sample low-temperature preservation device which comprises a box body and a box cover, the box cover is hinged to the upper portion of the box body, the bottom end of the box body is fixedly connected with one end of a base, a plurality of elastic blocks are fixedly installed on the two sides of the base, and limiting clamping grooves are formed in the two sides of the top end of the box cover. Locking mechanisms are arranged on the two sides of the box cover, a first groove is formed in the box body, a temperature sensor is arranged at the bottom end in the first groove, a breathable sponge is arranged in the first groove, a plurality of test tube containing grooves are formed in the breathable sponge, serial number grooves are formed in one sides of the test tube containing grooves, and breathable holes are formed in the breathable sponge; the problems that an existing occupational health sample low-