Soil moisture content detection device

The utility model provides a soil moisture content detection device which comprises a shell, a humidity display is bolted on the front face of the shell, a controller is integrally formed at the bottom of the front face of the humidity display, a stepping motor is bolted on the top of an inner cavity of the shell, and a lead screw is bolted on an output shaft of the stepping motor. A threaded sleeve is in threaded connection with the surface of the lead screw, connecting rods are transversely bolted to the two sides of the threaded sleeve, a movable seat is transversely bolted to the bottoms of the connecting rods, and buffer springs are vertically bolted to the two sides of the bottom of the movable seat. The electric power source is provided by the stepping motor, the screw rod, the threaded sleeve, the connecting rod and the movable seat are matched to rapidly lift the detection column, so that the detection column can be driven to be rapidly inserted below the ground surface, elastic buffering can be perf