The invention relates to the technical field of automobile part machining, in particular to automatic machining equipment for an automobile brake disc. The automatic machining equipment comprises a conveyor, a base and a workbench; the automatic machining equipment further comprises a drill feeding mechanism, a drilling mechanism, a deburring mechanism, a feeding mechanism, wherein the feeding mechanism is arranged above the worktable through a second supporting frame in a sliding mode so as to carry out pushing treatment on the brake disc at a station, the feeding mechanism comprises a firstclamping assembly and a first sliding table, and the drilling mechanism comprises a drill bit, a first rotating assembly and two sets of first fixing assemblies; the deburring mechanism comprises a grinding assembly, a second rotating assembly and two sets of second fixing assemblies; and the feeding mechanism comprises a second clamping assembly and a second sliding table. The automatic machiningequipment for the automobile brake disc has the advantages that the excellent performance of the brake disc is ensured, meanwhile, the safety problem is solved, so that the accident occurrence is prevented, the deburring function is attached, so that the quality of the brake disc is improved, meanwhile, the machining efficiency is improved, and the enterprise income is increased.