Sampling device for soil detection

The utility model discloses a sampling device for soil detection, which comprises a main body unit, the main body unit comprises a motor and a connecting rod, the output end of the motor is fixedly connected with the top end of the connecting rod through a coupler, and the bottom end of the connecting rod is fixedly connected with an extension rod; the sampling unit comprises a sampling barrel, the top of the sampling barrel is fixedly connected with a positioning column, the positioning column is fixedly connected with the bottom end of the extension rod, a penetrating opening is formed in the surface of the sampling barrel in a penetrating mode, and a sealing cover is installed in the penetrating opening. When the soil sampling device is used, soil in the soil can enter the sampling barrel from the bottom of the sampling barrel, so that the soil is sampled, in the sampling process, the penetrating opening in the surface of the sampling barrel can be sealed by the sealing cover, the integrity of the section