The invention relates to the technical field of lifting robot control, in particular to a lifting robot system. The lifting robot system comprises a motor for climbing a rope, a drive circuit for controlling the motor to move, a band-type brake for locking a motor rotor, a band-type brake circuit for controlling working of the band-type brake, a power source conversion circuit and a control circuit. The power source conversion circuit supplies power to the band-type brake circuit, the control circuit and the drive circuit. A power source supplies power to the motor through the drive circuit. The control circuit is connected with the band-type brake circuit and the drive circuit through signals. According to the lifting robot system, the rotating angle of the motor is controlled by the control circuit, the purpose of accurate conveying is achieved, meanwhile, the band-type brake and a band-type brake system are arranged, pause can be conducted at any time, and the system is convenient to operate.