Abstract: Several kinds of air conditioning of tank & armored vehicles are systematically introduced and compared with each other.The key points of every kind of air conditioning technique needing to be solved in the later are analyzed.It is concluded that turbine and varied-volume air refrigerating air-conditioning and solid adsorption air conditioning are the promising air conditioning techniques in tank & armored vehicles.On the contrary,evaporation-cycle air conditioning technique will be cancelled in the future.