The present invention relates to a low-temperature storage tank for storing concentrated aquatic products, and more particularly to a low-temperature storage tank for storing concentrated aquatic products. More particularly, the present invention relates to a low-temperature storage tank for storing concentrated aquatic products, The present invention relates to a low-temperature storage and a control method thereof, which can maintain the freshness of agricultural products stored automatically and humidified by self-generated condensed water without a separate humidifier and store the agricultural products freshly and for a long period of time. To this end, according to the present invention, a storage space is provided for storing the concentrated aquatic products at a low temperature, and a roof is provided at least at a distance of at least 100 to 500 mm or more to integrally provide an uncovering eave, A main body having at least one or at least one atmospheric pressure adjusting port for controlling the atmospheric pressure and the humidity and having a door； A unit cooler provided with a heater for drying and defrosting or a set temperature maintained in the main body and stored in the main body, and having a defrost heater overheat prevention sensor； And an outdoor unit provided at the outside of the main body to drive the unit cooler at a predetermined temperature, so that rainwater does not flow into the heater, and when the agricultural products stored in the low- The temperature of the storage tank is raised to dry the agricultural product, and the concentrated aquatic products are stored at low temperature by automatically blowing, defrosting, refrigerating, and heater driving after the set time.본 발명은 농축수산물을 저장하기 위한 저온저장고에 관한 것으로서, 더욱 상세하게는 송풍 및 히터에 의해 농산물이 건조되며, 건조된 농산물을 자동 저온저장되고, 설정된 온도에 따라 송풍, 제상, 냉장, 히터제상을 자동으로 이루어 저장된 농산물의 신선도를 유지하며, 별도의 가습기 없이 자체발생하는 응축수에 의해 가습 되어 저장된 농산물을 신선하게 장기간 저장할 수 있는 저온저장고 및 그 제어방법에 관한 것이다.이를 위하여 본 발명은 농축수산물을 저온저장하기 내부에
