The utility model provides a rotary guiding tool horizontal drilling test device which comprises a guiding device. A whole lifting platform is movably arranged on the guiding device and supported by a lifting hydraulic cylinder arranged below the whole lifting platform. A pair of screwing and buckling pincers is installed at the front end of the whole lifting platform and a rotary drilling device is movably installed in the almost middle position of the screwing and buckling pincers and connected with a bit pressure adding hydraulic cylinder through a force transducer. A torque rotation speed sensor is installed on an output shaft of a hydraulic motor of the rotary drilling device. The rotary guiding tool horizontal drilling test device is matched with other test systems, so that torque and drilling pressure of horizontal drilling are offered and accurately measured and controlled; a set of screwing and buckling pincers is arranged, so that short drilling rods are connected continuously, and a continuous drilling test of a rotary guiding tool in a concrete target block in front of the rotary guiding tool can be conducted. Meanwhile, the positions of the devices can be changed so that the requirement for multi-position drilling tests in the concrete target block in front of the rotary guiding tool horizontal drilling test device can be satisfied.