The present invention relates to a cold and hot air dehumidification drying device for agricultural and marine products. Agricultural and marine products are dried by a cold or hot air dehumidification system, and a more uniform and stable drying environment can be composed with respect to all drying objects fed into a drying chamber. Thus, quality is improved, and a drying period can be reduced. Also, an energy loss is minimized, and costs needed in drying can be saved. The device has a dehumidifying cold and hot air device (200), and has a dehumidifying air moving pathway (400) and an actual drying chamber (500) which are respectively disposed at the top and the bottom divided by a top and bottom horizontal compartment plate (300). A moving-type ventilating unit (700) having multiple ventilating fans (710) disposed therein is installed between the rear end of the actual drying chamber (500) and the dehumidifying air stationing space (600). A top loss air blocking film (810) and a bottom loss air blocking film (820) for preventing loss air are installed at the front top and bottom of the internal space of the actual drying chamber (500). Dehumidifying air is separately induced to the outside of the front of the actual drying chamber (500), a dehumidifying air distributing device (900) for distributing dehumidifying air is installed on a drying cart (510) disposed in the front thereof. Multiple drying infrared ray lamps (950) are installed on the ceiling of the actual drying chamber (500).본 발명은 각종 농·수산물을 냉풍 또는 온풍 및 제습에 의한 시스템으로 건조를 실시하되, 건조실 내에 투입된 모든 건조 대상물에 보다 균일하고 안정적인 건조환경의 조성이 가능하여 품질증대는 물론 건조기간을 단축하는데 크게 도움이될 뿐 아니라 에너지 손실의 최소화로 인하여 건조에 필요한 비용절감에도 크게 기여할 수 있는 농수산물용 냉·온풍 제습건조장치에 관한 것이다.즉, 제습냉온풍기(200)를 비롯하여 상하부 수평 구획판(300)에 의해 구분된 상부의 제습풍이동통로(400)와 하부의 실전건조실500)이 구비되어 있는 농수산물용 냉·온풍 제습건조장치에 있어서, 상기 실전건조실(500) 후방의 끝단부와 제습풍정체공간(600) 사이에 다수의 송풍팬(710)들이 배치된 이동식송풍유니트(700)가 설치되고, 실전건조실(500)의 내부공간 중 그 전방의 상측과 하측에는,유실풍을 방지하는 상부유실풍차단막(810) 및 하부유실풍차단막(820)이 설치되며, 상기 실전건조실
