Strain sampling device

The utility model belongs to the related technical field of biological science, and particularly relates to a strain sampling device which solves the problems that in the prior art, the sample amount is difficult to accurately control, and only a single sample can be collected in one loop, the strain sampling device comprises a shell and a sampling mechanism, a sliding groove is formed in the surface of the shell, and scales are formed in one side of the sliding groove; a sampling mechanism is installed in the shell, a bottom plate is installed in the shell, a guide pipe is installed below the bottom plate, a partition plate is installed above the bottom plate, a sliding rod is arranged between the shell and the partition plate, a sealing gasket is installed on the lower surface of the sliding rod, an adjusting rod is arranged at one end of the sliding rod, and a suction head is installed below the bottom plate. When flora sampling is carried out, the suction head is fixedly connected to the guide pipe throug