Device for in-situ testing in deep position of stratum

The utility model provides a device for in-situ testing in the deep position of a stratum, which comprises a guide rod, an elevator installed on the guide rod in a sliding mode and a hammering seat fixedly installed on the guide rod, a gravity hammer is installed on the guide rod in a sliding mode, and the gravity hammer is located between the hammering seat and the elevator. The elevator is started to drive the gravity hammer to move upwards along the guide rod, the guide rod is provided with a positioning plate, the electromagnet assembly is provided with a detection mechanism, the detection mechanism corresponds to the positioning plate, and automatic control over the elevator is achieved through the detection mechanism. The in-situ detection device has the beneficial effects that the detection mechanism is operated to automatically lift the gravity hammer through the elevator, and when the gravity hammer reaches a set height, the gravity hammer automatically falls, so that intelligent control is realized,