This article proposes a dual source heat exchange (DSHE) evaporator, which adopts a sleeve type heat exchanger design with external fins.A dual source heat exchange evaporator was simulated using Fluent software under different inlet velocity and temperature parameters,Analyzed the simulation results under typical working conditions,The temperature difference between the inlet and outlet of antifreeze is 1.93℃~4.28℃,The temperature difference between the inlet and outlet of the refrigerant is 6.39℃~12.53℃,The temperature difference between the inlet and outlet of air is 0.66℃~1.7℃.