The invention relates to a voltage transformer automatic wiring device used for performing primary wiring and secondary wiring on a voltage transformer to be calibrated on a production line, and the device includes a robot located on a side face of the production line and used for performing precise recognition on the position of the voltage transformer and realizing primary wiring and secondary wiring of the voltage transformer; a clamp module mounted on the production line, connected with a test line and the voltage transformer during wiring and used for serving as an intermediate connecting device of the test line and the voltage transformer to improve wiring efficiency; and a controller connected with the robot and used for providing a wiring scheme for the robot and controlling an operation path of the robot. Compared with the prior art, the voltage transformer automatic wiring device has the advantages of accurate wiring, high degree of automation, cost saving and the like.