General Impression: The square build and large wrinkle are the Pug's most distinctive features.
Its body is compact and symmetrical, but it is very strong. The legs are not very long. The front legs are straight under the breed while the back legs are somewhat angled.
It has a massive head that is somewhat round. The ears are set above eye level, are small, and fold down.
The wrinkles on the face are more apparent between the eyes. Its chest is broad and deep. The neck is muscular and smoothly extends to the back.
Its tail curls backward.
Head: The head is massive and round, but not apple shaped.
Skull: The large, round skull has no indentation. It is covered with wrinkles.
Muzzle: The muzzle is short, blunt and square. The bottom jaw is wide, and does not turn upright.
Teeth: A full complement of large, white teeth meet in a slightly undershot bite.
Faults: Wry mouth. Teeth or tongue showing when the mouth is closed.
Eyes: The very large, prominent, bold eyes are globular in shape. They are dark in color and very lustrous. Attentive in expression; when excited, full of fire.
Ears: The small thin ears are soft, like black velvet. Of the two kinds of ears found in the Pug, rose (drop ears that fold over and back), and button (semi-erect), preference is given to the button ear.
Neck: Strong and thick, slightly arched at the crest and long enough to allow for proud head carriage.
Forequarters: The shoulders are sloping.
Forelegs: The strong, straight forelegs are of moderate length. They are placed well under the body. Dewclaws may be removed.
Body: The body is short and cobby with a wide chest and well-sprung ribs. The top-line is level.
Hindquarters: Strong and powerful to balance with the forequarters.
Hind Legs: Well under the body. Strong, straight and parallel when viewed from the rear, with good angulation at the stifle joint.
Feet: The feet are not as long as a hare foot, nor so round as to be cat footed. The toes are well split up. Nails are black.
Tail: The high-set tail is curled as tightly as possible over the hip, with the double curl considered the ideal.
Coat: The fine, smooth, soft coat is short and glossy. Faults: Hard coat; woolly coat.
Color: Acceptable colors include silver or apricot, fawn and black. The colors are clearly defined for strong contrast.
Markings: The markings are clearly defined. The muzzle or mask, ears, moles on cheeks, thumb mark or diamond on forehead, and the back trace should be as black as possible. The mask should be black. The more intense and well defined it is, the better. The trace is a black line extending from the occiput to the tail.
Weight: The desirable weight range, for dogs or bitches, is from 14 to 18 pounds.
Temperament: This is an even-tempered breed, exhibiting stability, playfulness, great charm, dignity, and an outgoing, loving disposition.
Disqualifications: Unilateral or bilateral cryptorchid. Viciousness or extreme shyness. Albinism. Any color other than fawn or black.