Abstract: A pet Elizabethan collar is provided, which includes a baffle, a first flexible connector, an airbag ring, a detachable connector, and an adjustment piece. The baffle is composed of at least two fan-shaped blocking pieces that are assembled through the first flexible connector. The airbag ring is provided on a small arch edge of the baffle, and placed on a pet's neck after being enclosed by the detachable connector, the airbag ring can be adjusted to fit the pet's neck by adjusting an inflation amount, thereby improving the comfort of wearing while ensuring stability. The airbag ring is provided with a crease corresponding to the first flexible connector, which can achieve the folding of the entire product and render it more convenient for product packaging and storage; the airbag ring is evenly divided into a plurality of small airbag cavities by crease and meridian.