Abstract: Abstract: According to the climatic characteristics of long cold winter days in the northern area, the storage of natural cold resources from winter are used for cooling in summer to achieve the goals of conserving energy and reducing carbon emission. To address the issues with regard to controlling the temperature and humidity of environment as well as the usage time of cold resources are short when natural cold resources are used for the storage and preservation of agricultural product through blowing the natural air into the ice storage directly, the ice-water mixture was used as the heat exchange medium and air quality was improved by means of indirect heat exchanger with inner loop cooling. The process route of freezing storage-release cold energy by mixing ice and water-exchange heat indirectly-temperature and humidity independently was proposed in this study. The laboratory used for the experiment was a closed storehouse with a size of 2 m × 2 m × 2 m. The ice water at 0.5℃ as coolant flowed from top to bottom in the finned tube heat exchanger by use of a water pump. The hot air of environment crossed finned tube under the action of the fan, then the water temperature rose when the cold water flowed through the copper tube wall to absorb heat of the tube outer surface and the fin surface. The cooling air was blown into the storage, the mixture of cooling air and fresh outdoor air exchanged heat in heat exchanger. The measuring element used in the experiment can be connected with the computer, and data acquisition using RMA411 remote input capture module, which can be carried out in 16 channels of analog data acquisition. The data output adopted the distal RM4024 analog output module, which can realize the output of four voltage signals, achieving real time communication between the host computer and data acquisition and output module, through the RS485 serial port. Temperature and humidity acquisition adopted Pt100 temperature sensor and humidity sensor series, respectively. The instrument used in the test was corrected precisely prior to the experiment in order to meet the test requirements. The average value of the air flow was determined by the measurement of the five points of heat exchanger outlet section. The pump flow rate and air flow rate were adjusted by frequency converter. The values of CFD were similar to the value of experiments, and the error was less than 15%. Then the results of the experiments were used to validate the simulation model. The experiment showed that the head wind velocity had a greater influence on the performance of heat exchanger. The heat transfer coefficient and the pressure drop increased by 133% and 428%, respectively with the increase of the head wind velocity. However the increasing trend of heat transfer coefficient became slow as the increasing of wind speed. When the head wind velocity was within the scope of 1.5 to 3.5 m/s, the average field synergy angles increased by 12% and synergistic degree decreased. When the wind speed reached 3.5 m/s, the field synergy angles hardly changed with wind speed. The scope of the best head wind velocity was between 2.5-3 m/s. The air inlet direction has significant impact on air distribution in the heat exchanger. The air inlet direction could affect the heat transfer performance because too high or too low would produce eddy current and the uneven distribution of air flow. The results of the uniform wall temperature numerical simulation had a deviation with the experiments. The cooling capacity increased by 70.6% when the air inlet direction increased from -45 to 30℃. The heat exchanger had a better performance when the air inlet direction was 30℃.