The present invention provides an ion receiving pole, belonging to the ion drifting spectrum identification field. The objective of the invention is to solve the problem that the ion receiving pole employs a solid metal disc to allow the air flow to be unstable to cause the reduction of the IMS instrument performances. The receiving pole comprises a left electrode slice, a right electrode slice and a conductive circular ring. The left electrode slice and the right electrode slice are respectively fixedly connected at left and right sides of the conductive circular ring; the outer diameters of the left electrode slice, the right electrode slice and the conductive circular ring are the same, and the inner diameters of the left electrode slice, the right electrode slice and the conductive circular ring are the same as the inner diameter of a drift tube; the left electrode slice and the right electrode slice are relatively arranged in parallel, a plurality of ion holes are densely and uniformly distributed on the left electrode slice, a plurality of second ion holes are densely and uniformly distributed on the right electrode slice, and the first ion holes on the left electrode slice and the second ion holes on the right electrode slice, are mutually interlaced. The dual-layer structures with holes can effectively avoid the problem that there is unstable air flow in the condition of large air inlet flow.