The present invention relates to a book sterilizing device comprising an ultraviolet light-emitting device. The book sterilizing device of the present invention comprises: a main body part provided with an internal space for accommodating a book and a rotatable door part connected to the main body part, and including an ultraviolet light source part which is disposed on an inner wall and is involved in the irradiation of ultraviolet light onto the book accommodated in the internal space. According to the present invention, ultraviolet light can be locally applied on an area where sterilization is needed, thereby reducing a power loss.COPYRIGHT KIPO 2016본 개시의 자외선 발광 다이오드가 구비된 책 살균 장치는, 책을 수용할 수 있는 내부 공간이 배치된 본체부 및 본체부와 결합하여 내부 공간에 수용된 책으로 자외선을 조사하는 자외선 광원부가 내벽에 배치된 회전 가능한 도어부를 포함한다.