Ma ka hoʻohālikelike ʻana o ka hui umbrella cynological nui loa "Fédération Cynologique Internationale" (FCI), aia ka Shih Tzu i ka hui 9 "hoa a me nā ʻīlio hoa" a ma loko o ka pauku 5 "nā ʻīlio Tibetan".
He ʻīlio liʻiliʻi ʻo Shih Tzu, e like me ke kūlana FCI, hiki ke piʻi i ka nui a hiki i 27 knm a hiki i 8 kg ke kaumaha. Ua aie kona hi'ohi'ona i kona hulu loloa me ka nui o na kapa lalo. Hiki mai ia i nā kala he nui (pikebald pū kekahi) a pa'akikī ke 'ike 'ia nā pepeiao loloa ma muli o ka nui o ka hulu.
Ma lalo ʻoe e ʻike ai i nā peʻa ʻīlio Shih Tzu maikaʻi loa 10: