CFA Standards- MUZZLE（10 points): the muzzle is moderately short in length, full and rounded. There is a slight muzzle curvature, but the transition between the side of the head and the muzzle is gentle and inconspicuous.CHIN (4 points): the chin is well rounded but not protruding, and is in line with the nose.其實很多人認為，西伯利亞貓最重要是體型，體型越大就越好。但事實上，在CFA或其他大型貓會上，頭部結構才是佔最多分數的，其次才是體型。西伯利亞貓的口套是非常獨特有趣的。他不是方形亦非三角形，正面看，應該是一個圓形，而當他向下望，正面看，會是一個倒𨍭的梯型，好看的口套，應該是飽滿的，像包子一樣。過弱的口套，在任何貓會上也是失格！