Ear tag for animal epidemic prevention

The utility model discloses an ear tag for animal epidemic prevention, which relates to the technical field of ear tags and comprises a frame, a connecting plate is fixedly mounted on one side of the frame, a limiting device is arranged at the top of the connecting plate, an information device is arranged in the connecting plate, an inserting column is inserted into the frame, and a limiting device is arranged at the top of the limiting device. Nails are fixedly installed at the bottoms of the inserting columns, second grooves are formed in the bottom ends of the inserting columns, rotating columns are fixedly installed at the two ends of the inserting columns, second limiting blocks are fixedly installed at the two ends of an information board, sixth grooves are formed in the information board, and seventh grooves are formed in the upper surface of the information board. And a second spring is arranged in a seventh groove, a limiting column is fixedly installed at the top of the second spring, and second lim