The present invention is a poultry ankle structure, the ankle ring includes an annular portion and an arc-shaped portion, the annular portion has a sleeve hole at the center, and the outer surface has a marking portion； and the curved portion is disposed at an end edge of the sleeve hole greater than 1/4 In the circumferential range position, the inner wall of the bottom portion of the curved portion is coupled to the inner edge of the inner wall of the sleeve hole, and the top portion of the curved portion extends radially corresponding to the sleeve hole, and the inner wall of the curved portion forms an arc-shaped guiding surface, and the indicator portion The information surface is set up, and the information surface can be a one-dimensional barcode or a two-dimensional barcode or RFID； thereby the creation can be easily inserted into the work and can be accurately identified.本創作係一種禽類腳環結構，該腳環包括一環形部、一弧形部，該環形部中央具套孔，外表面具標示部；又該弧形部設於套孔端緣大於1/4環周範圍位置，該弧形部底部內壁與套孔內壁端緣連結，該弧形部頂部對應套孔徑向擴張延伸，並使弧形部內壁形成弧形導移面，又該標示部上設置資訊載面，該資訊載面可為一維條碼或二維條碼或RFID；藉此本創作可易於套入作業，並可具精確辨識功效。
