The present invention relates to a device for assembling a bag of urine and feces and, more specifically, to a device for assembling a bag of urine and feces to attach an upper edge of the bag of urine and feces to an adhesion part of a body-attached tape in which the bag of of urine and feces is inserted. According to the present invention, an operation of attaching the upper edge of the bag of urine and feces to the adhesion part of the body-attached tape is automated, so the device is suitable for mass production and reduces an error rate.본 발명은 대소변 처리 봉투 조립장치에 관한 것으로, 더욱 상세하게는 대소변 처리 봉투가 삽입되는 인체 부착용 테이프의 점착부에 대소변 처리 봉투의 상단부 테두리를 부착시키기 위한 대소변 처리 봉투 조립장치에 관한 것이다.