Sterile sampler

The utility model relates to the technical field of sampling devices, in particular to a sterile sampler which comprises a mounting seat, a switching groove is formed in the top surface of the mounting seat, a first through hole and a second through hole are formed in the bottom surface of the switching groove, a through groove penetrating through the mounting seat is formed in one end of the mounting seat, and a mounting groove is formed in the end, close to the first through hole, of the mounting seat; a sealing plate is slidably mounted in the through groove, a connecting seat is fixedly mounted on the top surface of the sealing plate, a collecting cylinder is detachably and rotatably connected to the top end of the connecting seat, and a collecting mechanism is arranged in the collecting cylinder; the bottom end of the first through hole is in threaded connection with a storage assembly. In the whole sampling process, through the cooperative arrangement of the mounting base, the collection cylinder, the s