The present invention relates to an electric ovum denuding device and an ovum denuding method therefor. The electric ovum denuding device consists of an ovum denuding pipette, a control handle, a drive module, a control module, a display module, a power module, a memory, a tip, and/or a voice module, and/or a pressure sensor, and/or a control box, and/or a foot-operated switch controller, which form an integrated or a separable-component electric ovum denuding device. A stepper motor provides the power for blowing and sucking so as to denude the granulocytes at the outer periphery of an oocyte. The present invention provides an accurate, standardized, comfortable electric ovum denuding method and device, and avoids ovum denuding related risks, standardizes ovum denuding operation, and improves labor intensity.