The invention relates to the technical field of bearing machining devices, in particular to a multi-shaft operation type grinding platform used in a bearing ring bar discharging process. The multi-shaft operation type grinding platform comprises a bottom plate and a control seat, the bottom plate is connected with the control seat, the control seat is connected with a cylindrical shaft rod, one end of the shaft rod extends into the control seat, the other end of the shaft rod is connected with a grinding cutter, one end of the grinding cutter extends into a cylindrical groove formed in the endof the shaft rod, a plurality of evenly-distributed clamping units are annularly arranged on the periphery of the grinding cutter and arranged on the shaft rod, an air pipe cavity, an annular pipe cavity and a collecting and distributing pipe cavity are formed in the shaft rod, and one end of the air pipe cavity is connected with the outer wall of the shaft rod. According to the multi-shaft operation type grinding platform, through the structural design, rapid separation and combination between the shaft rod and the grinding cutter are achieved, the operation is easy, the replacement time isshortened, the whole grinding common work quality is improved, and regular maintenance and repair work of workers is facilitated.