The invention relates to the technical field of automobile brake disc grinding machining, in particular to multi-angle synchronous efficient grinding equipment for an automobile brake disc. The equipment further comprises a machining platform, a clamping rotating assembly, a top surface grinding assembly and a side wall chamfering and grinding assembly, wherein the clamping rotating assembly comprises a mounting disc, a transmission disc, a positioning disc, a clamping jaw and a pressing mechanism; the top surface grinding assembly comprises a first lifting mechanism, a first horizontal displacement mechanism and a top end horizontal grinding mechanism, and the top end horizontal grinding mechanism comprises a horizontal grinding disc capable of grinding the top surface of the automobile brake disc; and the side wall chamfering and grinding assembly comprises a second lifting mechanism, a second horizontal displacement mechanism, an angle adjusting mechanism and a side wall chamferingand grinding mechanism, and the side wall chamfering and grinding mechanism comprises a side wall grinding disc. The equipment shown can precisely and efficiently position and clamp the automobile brake disc, and the surface, the side wall and the edge of the brake disc are synchronously and accurately ground, such that the working efficiency is greatly improved, and repositioning is avoided.