The invention discloses an anti-bird device for electrical equipment. The device comprises a single-blade anti-bird assembly and a dismounting assembly, wherein the single-blade anti-bird assembly comprises a support rod structure and a Y-shaped blade, the support rod structure comprises a rod body, an extension section of the rod body and a C-shaped through groove, the C-shaped through groove ispositioned at one end of the rod body corresponding to the extension section and is fixedly connected with the rod body, and the support rod structure is detachably connected with the support rod of the electrical equipment through the C-shaped through groove; the outer peripheral surface of the extension section of the rod body is provided with a thread and a convex ring; the Y-shaped blade rotatably sleeves the extension section of the rod body and limits the Y-shaped blade through the convex ring. The anti-bird device can be arranged near a binding post of a switch on the post through an electriferous installation tool, by the rotation of the Y-shaped blade of the anti-bird device, birds are moved away from the switch on the post because the birds stand unsteadily and are frighten, so that the birds can be safely repelled.