The present invention relates to an apparatus for fumigating fruits and vegetables by using a fixed type tent facility. The present invention is provided to enable fumigation gas to be quickly spread by forming the inside of a facility in a negative pressure state before performing a fumigation and prevent the temperature of the inside of the facility from being increased by the fumigation gas. The apparatus for fumigating fruits and vegetables, which is provided by the present invention for the forementioned, includes: a facility (170) of a quadrilateral shape a medicinal fluid tank (10) which is included in one side of the outside of the facility (170) and includes a fumigant for sterilizing fruits and vegetables a vaporizer (30) which vaporizes by heating liquefied medicinal fluid a fumigation gas supply line (50) which supplies fumigation gas which is vaporized in the vaporizer (30) to the inside of the facility (170) and an exhaust line (110-1) which discharges fumigation gas which finishes the fumigation to the outside of the facility (170). The facility (17) includes: a concrete base part (60) which is installed on the bottom a tent support member (64) which supports a tent (66) and the tent (66) which surrounds and seals the tent support member (64) and the concrete base part (60). A differential pressure gauge (190) is more included in the outside of the facility (170), fumigation gas is injected to the inside of the facility (170) after forming a pressure of the inside of the facility (170) at a negative pressure, and a fumigation gas injection nozzle (50-1) is included in the lower part of one side of the facility (170) on each path between stacked fruits and vegetable boxes (290).COPYRIGHT KIPO 2014본 발명은 고정식 천막 시설물을 이용한 청과물 훈증소독 장치에 관한 것으로서, 훈증소독을 실시하기 전에 시설물 내부를 부압 상태로 형성하여 훈증가스가 빠르게 확산되도록 하고, 훈증가스에 의해 시설물 내부의 온도가 상승하는 것을 방지하는 것을 목적으로 한다. 이를 위하여 본 발명은, 사각 형태의 시설물(170)과, 시설물(170)의 외부 일측에 구비되어 청과물 소독용 훈증제를 내장한 약액 탱크(10)와, 액상의 약액을 가열하여 기화시키는 기화기(30)와, 기화기(