A kind of contraction gum cover structure of pigeon racing foot ring can tightly be coated on the outside of the pigeon racing foot ring in heating Hou, to provide protective effect to the pigeon racing foot ring. Number is printed in the pigeon racing foot ring. The outside wall surface of aforementioned pigeon racing foot ring sticks lighttight paster, to cover the number on the pigeon racing foot ring. The contraction gum cover is solid outside the pigeon racing foot ring with heating method tight beam, to protect the paster, and prevents to practise fraud. The contraction gum cover is provided at least one pulling-on piece outstanding upward or downward. Left and right two side of the upper what tab position of the contraction gum cover is each provided with several apertures of a row from top to bottom Boulez. The contraction gum cover can be made to generate tearing phenomenon at the plurality of small holes of the left and right two rows by pulling the tearing movement of the pulling-on piece, and remove the contraction gum cover.一種賽鴿腳環的收縮膠套結構，其能夠在加熱後緊緊包覆在該賽鴿腳環的外部，以對該賽鴿腳環提供保護作用。所述賽鴿腳環內印刷有編號。前述賽鴿腳環的外壁面貼上不透光的貼紙，以遮蔽該賽鴿腳環上的編號。該收縮膠套以加熱方式緊束固在該賽鴿腳環外，以保護該貼紙，而杜絕作弊。所述收縮膠套設置有至少一個向上或向下突出的拉片。該收縮膠套上位於該拉片位置的左、右二側各設置有一排由上而下布列的數個小孔。可藉由牽拉該拉片的撕開操作，使該收縮膠套在該左、右兩排的多數個小孔處產生撕裂現象，而取下該收縮膠套。
