Probe for underground exploration

The utility model discloses a probe for underground exploration, and belongs to the technical field of exploration. Comprising a detection probe, a counterweight pipe and a steel rope, the upper end and the lower end of the balance weight pipe are closed, the balance weight pipe is filled with or partially filled with filler, and the balance weight pipe is formed by splicing a plurality of sections of sub-pipe bodies. The detection probe is detachably arranged at the bottom end or the top end of the counterweight pipe, the steel rope is connected with the top end of the counterweight pipe or the top end of the detection probe, every two adjacent sub-pipe bodies are detachably connected, and the filler is clean water, sewage, slurry or sand. And the weight of the probe is easy to control to improve the adaptability. At least three control modes are as follows: 1, the type of the filler is adjusted; 2, the amount of the filler is adjusted, and the filler is filled or partially filled; and thirdly, the length of