牛头梗必须有强壮的体架，肌肉发达，匀称并且活泼积极，行动犀利，果断，聪明，充满热情但是甜美的性格（捉摸了一下，其实就是谄媚）并且服从纪律。

• "The Bull Terrier must be strongly built, muscular, symmetrical and active, with a keen, determined and intelligent expression, full of fire but of sweet disposition and amenable to discipline."