The utility model discloses an underground stress test device, including body frame, kelly, motor, handle and perpendicular dynamometry frame, operating panel is installed to the front end of body frame, and operating panel's below settles and to have the pivot, be swing joint between body frame and the operating panel, and be swing joint between operating panel and the pivot, the kelly is installed in operating panel's top, and is swing joint between kelly and the operating panel, the motor runs through in the top of body frame, and the bottom of motor is connected with fixation nut, be the screw connection between motor and the body frame, and be swing joint between motor and the fixation nut, fixation nut installs spiral shell rasp bar in the below. This underground stress test device is provided with the spiral shell rasp bar of partition, and the spiral shell rasp bar of partition can be accurate when the device gos deep into underground survey stress knows the degree of depth, and then makes the test data's of device the degree of accuracy to be increased substantially.