PURPOSE: A neck cover for an animal is provided to make precise adjustment possible according to the neck size of the animal and to facilitate adjustment thereof. CONSTITUTION: A neck cover for animal comprises: a cover body(10) which is equipped with a seating hole in the center thereof; a length adjustment hole(30) which is formed in one end of the cover body; a fixing hole(20) which is formed in the other end of the cover body; and a fastening unit(40) which is inserted into the fixing hole and length adjustment hole. The cover body can be made of plastic, acryl, PC, PMMA and the like.본 발명은 동물용 목 커버에 관한 것으로, 더욱 상세하게는 장 홀로 형성된 길이 조절홀의 원하는 부분에 체결수단을 고정시켜 동물의 목 크기에 따라 정밀한 길이 조절이 가능한 동물용 목 커버에 관한 것이다.