Abstract: The concept of the body cooling suit enabled from the micro-fan-array system was interpreted.Theoretical prediction and experimental measurements were performed to demonstrate the feasibility of the new cooling method.Based on Pennes equation,numerical simulation on the three-dimensional heat transfer in human body subject to various typical ambient thermal conditions revealed that,implementation of the micro-fan-array near the skin surface could significantly lower the body surface temperature,owning to its strong capability in heat transfer enhancement.Meanwhile,both infrared thermometer and thermocouple data acquisition system were adopted to measure the micro-fan-array cooling induced temperature decrease on a thermo-man used to simulate the human body.The results further strongly support the high efficiency of the micro-fan-array cooling.This research is expected to open a new strategy for developing air cooling suit aiming at flexibly regulating the heat dissipation states of the body surface under a hot environment.