PROBLEM TO BE SOLVED: To provide a teeth cleaner toy for a cat that can preferably be used as a setaria, etc., in which the instinct of the cat (hunting instinct, instinct of preferring animal hairs and insect products, etc.) is multi-directionally used, and thereby the cat itself is made to cause more stronger interest and made to play, and the dental health of the cat can be taken into consideration.SOLUTION: A teeth cleaner toy for a cat comprises a hollow egg-shaped natural cocoon 2 the content of which is extracted, and a surrounding material 3 attached to the outside of this natural cocoon 2. The surrounding material 3 is formed of a knitted material that is easy for teeth to come in more than the natural cocoon 2.COPYRIGHT: (C)2015,JPO&INPIT【課題】猫じゃらしなどとして好適に使用することができる猫用歯みがき遊具において、猫の本能(狩猟本能、動物の毛や虫の産物を好む本能など)を多角的に利用することによって猫自身に更に一層強い興味を惹起させ、じゃれさせることで、猫の歯の健康に配慮できるようにする。【解決手段】中身を取り出した中空卵形の天然繭2と、この天然繭2の外面に付着された包囲材3とを有しており、包囲材3は天然繭2よりも歯が入りやすいアミ状の素材により形成されている。【選択図】図1