The invention relates to an ABS brake control circuit of an elevator brake system, which comprises a brake controller, a back-up source, an artificial rescue command circuit, a power grid power down command circuit, a system fault command circuit, a signal identification circuit, a brake mode switching circuit and the like. By adopting the ABS brake control circuit, when carrying equipment, such as an elevator and an escalator, has system fault, an electric grid is power-down or emergency rescue is required, the carrying equipment can be converted to safety stopping from antecedent safety speed reduction, the major hidden danger in the elevator brake system caused by once complete braking of the elevator brake system is canceled, the ABS brake control circuit can also ensure that the phenomena that an elevator car is out of speed and a brake is out of control can not occur when manual brake release is adopted, and the brake safety of the carrying equipment, such as an elevator, an escalator and an passenger conveyor, is improved.