PCR amplification operation cabinet with sample transmission function

The utility model relates to a PCR (Polymerase Chain Reaction) amplification operation cabinet with a sample transmission function. The device comprises a specimen preparation module, a PCR amplification module and a sample transmission module, the specimen preparation module comprises a specimen preparation room, a bottom air cavity, a side air cavity and a first top air cavity, and the specimen preparation room is provided with a specimen preparation operation window, a first air inlet and a specimen preparation area; the first top air cavity is provided with a first air draft device and a first disinfecting and filtering device, the first top air cavity is provided with an upper air duct air outlet and a lower air duct air outlet, and the sample conveying module comprises a sample conveying room, an air draft channel and an air supplementing channel. Compared with the prior art, the sample preparation room has the advantages that the whole sample preparation room is filled with clean gas, so that samples a