The Combined pet house of this creation include a pedestal, two be spaced apart from each other and separably install side wall on the what pedestal, it is several it is individual separably across the first outer cat grasp board set on two side wall of what, two side wall of what, this etc. interior space between the first outer cat grasp board and pedestal and one wear opening of the what wherein on a side wall. Each side wall includes a wall body, several first clamping portions, several first wears portion and several first clamping parts. Each first outer cat grasp board includes a supporting body and one sets ontology on the what supporting body, and supporting body includes a supporting part, one first alar part, one second alar part, two sleeved parts and two cramps. Thereby, the Combined pet house is with meeting the needs of cat lives and grinds nail in the limited space of what, so as to efficiently use space.本創作的組合式寵物屋包含有一基座、二相互間隔且可分離地裝設於該基座上的側壁、數個個別可分離地跨設於二側壁上的第一外貓抓板、一位於二側壁、該等第一外貓抓板及基座之間的內空間以及一穿設於其中一所述側壁上的開口。各側壁包含有一壁體、數個第一卡接部、數個第一穿設部及數個第一卡扣部。各第一外貓抓板包含有一承載體及一設於該承載體上的本體,承載體包含有一承載部、一第一翼部、一第二翼部、二套設部及二扣片。藉此,所述組合式寵物屋兼具有於有限的空間內滿足貓居住及磨指甲的需求,從而能有效利用空間。