The present invention relates to a method for manufacturing a companion animal waste treating agent using a tofu residue. According to an embodiment of the present invention, the method for manufacturing a companion animal waste treating agent using a tofu residue comprises: a step of manufacturing a first mixture； a step of drying the first mixture； a step of manufacturing a second mixture； a step of manufacturing a spherical pellet by forming the second mixture； and a step of drying the spherical pellet. According to the present invention, the method for manufacturing a companion animal waste treating agent using a tofu residue can provide excellent deodorizing performance.본 발명에 따른 두부 비지를 이용한 반려동물 분뇨 처리제는,두부 비지 55 내지 65 중량부；, 패각소성분말 1 내지 10 중량부；, 알파전분 25 내지 35중량부；, 탄산칼슘 1 내지 10중량부；를 포함하는 것을 특징으로 한다.
