The present invention is to light the defecation device and surroundings during the post-processing of the defecation of the pet dog in the dark of the house or outdoors in a defecation device that allows the dog to receive defecation while the dog is active in the house or walking outside the house. Relates to the device, the discharge port 11 is formed radially incised in the lower center, a plurality of fastening members 23 coupled to the upper outer periphery of the toilet 10； The toilet bowl 10, the screw 12 is screwed to the outer periphery of the stopper (12)； A disposable defecation bag 15 fixedly inserted into the defecation container 10； The elastic waistband 30 is fastened to the waist of the pet dog, and one end is integrally coupled to the waistband 30 and the other end is provided with a coupling member 33 coupled to the fastening member 23. And, including a plurality of elastic fixing band 32, a defecation device for a pet dog, the fixing member 50 coupled to the side of the toilet 10； It is coupled to or separated from the fixing member 50 and includes a luminaire 60 that replaces the defecation bag 15 in the defecation container 10 or illuminates the surroundings during post-processing after defecation of a pet dog. The present invention can be used to hygienically replace the defecation bag using a lighting device during the post-treatment of feces according to the defecation activity of a pet dog wearing a defecation device in a dark place or at night, and illuminate the periphery of the pet dog when walking. This is to improve the health of the dog and the convenience of walking.본 발명은 애완견이 집안에서 활동 중이거나 또는 집 밖에서 산책 중일 때에 애완견의 배변을 받아낼 수 있도록 하는 배변장치에서 집안이나 또는 야외의 어두운 곳에서 애완견의 배변 뒤처리를 하는 동안 배변장치 및 주위를 조명하는 장치에 관한 것으로, 하부 중심에 방사상으로 절개된 배출구(11)가 형성되고, 상부 외주연에 복수의 체결부재(23)가 결합된 배변통(10)； 상기 배변통(10) 하부 외주연에 나사 결합되어 밀폐시키는 마개(12)； 상기 배변통(10) 내부에 삽입 고정되는 일회용 배변봉지(15)； 상기 애완견의 허리에 체결하여 고정하는 탄성을 갖는 허리밴드(30), 및 일단이 상기 허리밴드(30)에 일체 결합되고, 타단에 상기 체결부재(23)와 결합되는 결합
