The invention provides a control system of a cable-stayed bridge cable rope crawling robot, and belongs to the field of robots. The control system comprises an instruction sending terminal and an instruction receiving control terminal. The instruction sending terminal comprises an upper computer, a core controller and a wireless signal transmitting module. The instruction receiving control terminal comprises a wireless signal receiving module and a motion driving module. The upper computer is connected with the core controller, and is used for sending a control signal for controlling the robot to the core controller. The core controller sends the control signal for controlling the robot to the wireless signal receiving module through the wireless signal transmitting module. The wireless signal receiving module transmits the control signal to the motion driving module. The motion driving module comprises a driving unit, a braking unit and a sensor unit. The problems that an existing robot control system is high in manufacturing cost, unstable in circuit and low in operating load, and the braking capacity is reduced and even fails after an existing robot electromagnetic brake is used for a long time are solved.