Punching and extracting device for agar culture medium

The utility model discloses an agar culture medium punching extraction device and relates to the technical field of agar culture media. In order to solve the problems that when an agar culture medium is clamped by traditional tweezers, the tweezers heads are sharp, the agar culture medium is very soft, and uneven stress easily occurs, so that the agar culture medium is damaged; the problems that when a culture medium is placed at an inoculation point through tweezers, tweezers heads can touch the inoculated culture medium, the inoculation area is not in a regular fungus cake shape any more, then the development shape of a bacterial colony in the later period is irregular, and the experiment result is affected are solved. When the punching and extracting device is used for punching and extracting the agar culture medium, tweezers used in a traditional mode are replaced, and the phenomenon that the agar culture medium is damaged in the punching and extracting process is avoided; and during inoculation, an outle