An orthodontic ligature has a decorative member, a ligature member, and an optional sticker member. The decorative member is connected to the ligature member and extents over the ligature member. After the ligature is installed to a bracket, the decorative member can at least partially cover the bracket. The decorative member and/or the optional sticker member can be configured to have various colors, shapes, patterns, etc., so as to provide cosmetic, attractive, and/or protective effects.