Sampling device for geological experiment test

The utility model relates to the technical field of geological exploration, in particular to a sampling device for geological experiment testing, which is characterized in that the height of a connecting top plate is adjusted through the lifting of a hydraulic lifting cylinder so as to adapt to sampling of different terrains; the heights of the second motor and the spiral sampling rod on the lifting plate are adjusted, so that the spiral sampling rod can sample soil at different depths, and the soil sampling efficiency is improved; a flushing head is arranged on the side surface of the lifting plate, and the flushing head is communicated with a water tank through a water pump, so that the spiral sampling rod is effectively cleaned through the flushing head after being used every time, and the next use is ensured; the storage groove is formed in the side face of the mounting bottom plate, the stabilizer bar is arranged in the storage groove, one end of the stabilizer bar is in threaded connection with the thre