The invention discloses an electric power tower mounting calibrator. The electric power tower mounting calibrator includes a device body and user terminals; the device body includes a first calibrator, a second calibrator, a plumb bob, a pulling rope and a limiting baffle plate; a male junction is arranged in a left side part, and a female junction is arranged in a right side part; the male junction includes sliding blocks, connecting rods, a buckle and a rotary shaft; the sliding blocks are arranged at the top and the bottom of the male junction; the top of the pulling rope is connected withthe first calibrator in a knotted mode, the first calibrator and the second calibrator are both provided with mounting grooves for mounting the limiting baffle plate; the second calibrator is providedwith a laser receiver, the laser receiver is arranged below the plumb bob; batteries and a laser transmitter are arranged in the plumb bob; lamp caps are arranged below the laser transmitter; and thelaser receiver includes a receiving panel, a binding post, a communication line, a data professor, a wireless communication module and a signal amplifier. Installation is convenient, a laser beam istransmitted downward vertically, and the error is small.