PURPOSE: A tunnel type disinfection device is provided to use a gas phase germicide in order to more effectively sterilize virus or harmful bacteria on the surface of a sterilized object without leaving stain a stain on the surface of a sterilized object such as a vehicle or an apparatus; and to facilitate maintenance in the winter time. CONSTITUTION: A tunnel type disinfection device(100) that uses a germicide includes a housing(110) which is equipped with an opening(112) on the end part so that a sterilized object is accommodated or passes through; an opening and closing unit(120) which is installed on the opening to separately block the inside and the outside of the housing; a germicide spray unit(130) which sprays a germicide onto the sterilized object to be sterilized; a germicide making unit(140) which supplies the germicide to the germicide spray unit; and a control unit(150) which controls the operation of the germicide making unit. The housing includes a tunnel-shaped foldable body(114), which forms the exterior of the housing, and a folding unit(116), which is installed on the body, so that the body is compressed or extended in the length direction. The opening is formed vertically with a door guide groove(116c). The opening and closing unit includes a sliding door(124) which is inserted into the door guide groove and slides vertically.살균제를 이용한 방역장치가 개시된다. 본 발명의 일 실시예에 따른 살균제를 이용한 방역장치는, 살균대상물이 수용되거나 통과하도록 단부에 개구부를 구비한 하우징; 상기 하우징의 내외부가 서로 차단되도록 상기 개구부에 설치되는 개폐장치; 상기 살균대상물이 살균되도록 상기 살균대상물에 살균제를 분사하는 살균제 분사부; 상기 살균제 분사부에 살균제를 공급하는 살균제 제조부; 및 상기 살균제 제조부의 작동을 제어하는 제어부를 포함할 수 있다.