The present invention relates to a bathroom-buried pet bathtub allowing a user to easily handle excretion and wash dogs in a bathroom in multi-unit dwelling units. The present invention further relates to a construction method therefor. More specifically, provided are a bathroom-buried pet bathtub and a construction method therefor. According to the present invention, the bathroom-buried pet bathtub can be applied to on floor piping methods, and ensures simple construction by being included in bathroom construction processes without requiring additional processes. Since excretion treatment and washing for dogs can be conducted in the bathroom after the construction, additional production purchase is not needed, and post-treatment and washing are easy as well.COPYRIGHT KIPO 2017본 발명은 공동주택의 욕실에 애견 목욕과 배변의 처리를 용이하게 하기 위한 욕실 매립형 애견욕조 및 그 시공방법에 관한 것으로, 특히 층상배관 공법에 적용가능하며 별도의 공정 없이 욕실 시공공정에 포함하여 시공이 간편하고, 시공후 애견의 배변 처리 및 목욕을 욕실 공간에서 실시하여 별도의 제품 구매와 사용후 처리 및 세척이 용이한 욕실 매립형 애견욕조 및 그 시공방법을 제공한다.