The invention discloses a numerical control fixed-torque intelligent electric wrench. The wrench comprises a parameter input and display module, a two-dimensional code scanning module, a torque sensor, an angle sensor, a numerical control module and a data transmission module. The parameter input and display module is used for presetting torque parameters, displaying the torque result and achieving operation information reminding. The two-dimensional code scanning module is used for recognizing current operation personnel and construction plan contents. The numerical control module is used forreceiving and processing the input result of the two-dimensional code scanning module, receives the parameters and the output result of the parameter input and display module at the same time, is used for processing the torque information and the angle information of the torque sensor and the angle sensor and controlling the tightening work process, is used for integrating all the information collected in the construction process and achieving correlation of information of the human task, the machine task and the construction task and transmits the information to a background server through the data transmission module. According to the electric wrench, the construction procedures can be simplified, and the construction quality is obviously improved.