Full-automatic micro torque standard device

The invention, which belongs to the fields of measurement and detection, torque detection calibration, and torque testing, provides a full-automatic micro torque standard device. The full-automatic micro torque standard device comprises a main beam component (1), a three-free degree workbench component (2), a rack component (3), a twisting levelling component (4), a counterweight hanging component (5), and a counterweight loading component (5). The rack component (3) is arranged horizontally; a to-be-measured torque sensor is arranged at the three-free degree workbench component (2); one end of the to-be-measured torque sensor is connected with the main beam component (1) and the other end is connected with the twisting levelling component (4); and the main beam component (1) is fixedly connected to the rack component (3) by a air floatation bearing (9).