How do you judge whether a Border Collie is good or bad? A purebred Border Collie has a large frame and well-proportioned body. Males have a shoulder height of 19 to 22 inches, and females have a shoulder height of 18 to 21 inches. The eyes are of medium size, widely spaced, and the ears are erect or semi-erected. , well-developed nostrils; purebred Border Collie is generally black or black with patterns, and all white is unqualified.

　1. Body shape

The height of males ranges from 19 to 22 inches at the withers; the height of females ranges from 18 to 21 inches. Body length (distance from end of shoulder blade to hip) is slightly greater than height at withers. Bones are strong but not exaggerated and proportionate to overall size. The overall symmetry of height, length, weight, and bone mass is crucial and is much more important than any single feature. Excess weight should not be mistaken for muscle or bone mass. Any single feature that affects the balance of the whole will be considered a defect.

　2. Head

Expression: Intelligent, alert, enthusiastic and curious.

Eyes: Widely set, medium in size, oval. The eye rim pigment and eye color are brown; if the main color of the body is not black, the eye color will be significantly lighter. Lack of pigment in the eye circles is a fault. Blue eyes are to be faulted in dogs of any color other than merle. Merle dogs with one or both eyes blue; one eye partially blue or both eyes partially blue are allowed.

Ears: Medium size, set widely apart, erect or semi-erect (keep 1/4 to 3/4 of the ears erect). The tips of the ears point forward or sideways. The ears are sensitive and flexible.

Skull: broad, occiput not protruding. The length of the skull is equal to the length of the front face. The stop is moderate but clear.

Muzzle: Slightly short, strong, and blunt, with a slightly tapered nose. The lower jaw is strong and well developed. The color of the nose is consistent with the main color of the body, and the nostrils are well developed. A truncated muzzle is a fault. Bite: Strong teeth and jaws, scissors bite.

　3. Color

Border Collies come in many colors, styles and markings. The most common color is black with (or without) white ribs, white collar, white socks, white tail tip, with (or without) brown markings. Various body colors are allowed, with the exception of pure white. Single colours, two colours, three colours, and traditional colors should be treated equally in competition. Color and markings are secondary indicators in competition, body structure and gait are the primary indicators.

4. Temperament

The Border Collie is an intelligent, alert and sensitive breed. It is very friendly to friends but obviously reserved towards strangers, so it is a very good guard dog. It is also an excellent herding dog that is willing to learn and content with it. and thrive in human friendship. Appreciable vicious tendencies or extreme shyness are serious faults.