PCR sample adding device

The utility model discloses a PCR (Polymerase Chain Reaction) sample adding device which comprises a box body, an ice box, a sample adding plate and a cover plate, the ice box is arranged on the box body in a drawable manner, the sample adding plate is arranged at the upper end of the box body and is positioned above the ice box, the cover plate is hinged to one side of the box body, and the coverplate is buckled with the other side of the box body through a buckling assembly; the sample adding plate comprises a plurality of rows of strip-shaped plates, and the strip-shaped plates are detachably connected through a connecting assembly to form the sample adding plate; a plurality of cover plates are arranged and are buckled with the other side of the box body so as to cover the strip-shaped plate; by arranging the connecting assemblies, the multiple rows of strip-shaped plates with the holes are connected to form the sample adding plate, so that the sample adding plate can be disassembled into multiple rows to