The pet toilet device created by this invention includes two straps, a toilet seat and a harness. Two straps are used to pass through the inside of the pet's hind legs. The toilet seat is connected to two straps and is used to configure the pet's hips. The toilet seat includes a body, an accommodating part and a toilet passage. The front surface of the body is used to face the pet's buttocks. The accommodating part can be optionally installed on the body or detached from the body. The stool receiving passage passes through the main body and the accommodating part, and is used for accommodating the stool bag. The accommodating part is installed on the main body on the back surface of the main body. The harness connects the two straps and the toilet seat, and is used to be arranged on the back of the pet, wherein the toilet seat and the harness are used to cuff the base of the pet's tail.本創作的寵物接便裝置包括兩綁帶、接便座及背帶。兩綁帶用以穿過寵物的後腿內側。接便座連接兩綁帶且用以配置在寵物的臀部。接便座包括本體、容置部及接便通道。本體的前表面用以面對寵物的臀部。容置部可選擇地安裝在本體或自本體拆離。接便通道是穿過本體及容置部，且用以容置便袋。容置部安裝在本體是位在本體的後表面。背帶連接兩綁帶及接便座，且用以配置在寵物的背部，其中，接便座及背帶用以銬扣寵物的尾巴基部。
