NOVELTY - Preparing hydrogen energy generated low temperature combustion battery anode catalyst involves functionalizing carbon nanotube in three necked bottle by using air pressure; putting functionalized carbon nanotube into ethanol (30 ml), ultrasonically processing, adding noble metal acid solution (7.5 ml) to obtain mixture of carbon nanotube and noble metal precursor; reducing plasma by grinding the mixture of carbon nanotube with noble metal precursor into bottle, pumping air pressure in the bottle, laminating the air in bottle to obtain noble metal catalyst.    USE - For preparing hydrogen energy generated low temperature combustion battery anode catalyst (claimed) used in low-temperature fuel battery.    ADVANTAGE - The method is green and efficient method, and avoids using toxic chemical reagent; greatly reduces the loss of precious metal; and efficiently prepares noble metal catalyst in a large scale.    DETAILED DESCRIPTION - Preparing hydrogen energy generated low temperature combustion battery anode catalyst involves functionalizing carbon nanotube: putting carbon nanotube into three-necked bottle, opening the mechanical pump, pumping the air pressure in the three-necked bottle to lower than 5 Pa, opening the air source, introducing air into the three necked bottle till the air pressure in the three-necked bottle being 15 Pa, setting the output power of the radio frequency power supply to 60 W, adjusting the matcher till the feed signal being 0, laminating gas in the three-necked bottle through the radio frequency power supply, discharging for 20 minutes after laminating the gas, in the three-necked bottle to obtain functionalized carbon nanotube introduced with functional group on the surface; soaking the noble metal precursor: putting the functionalized carbon nanotube into ethanol (30 ml), ultrasonically processing by 60W of output power by using an ultrasonic device, after uniformly dispersing the functionalized carbon nanotube, adding 7.53 mg/ml of noble metal acid solution (7.5 ml), putting the solution mixed by ethanol into the functionalized carbon nanotube and noble metal acid solution into an ultrasonic device, ultrasonically processing for 30 minutes, standing for 24 hours, putting the ultrasonically processed mixed solution in a vacuum drying box, drying at 40 degrees C for 12 hours to obtain mixture of carbon nanotube and noble metal precursor; reducing plasma: grinding the mixture of carbon nanotube with noble metal precursor into 500 ml of three-necked bottle, opening the mechanical pump, pumping the air pressure in the three necked bottle to lower than 5 Pa, introducing air into the three-necked bottle by the air source till the air pressure in the three-necked bottle being 20 Pa, setting the output power of the radio frequency power supply as 80W, adjusting mechanical pump, pumping the air pressure in the three-necked bottle to lower than 5 Pa, introducing air into the three-necked bottle by the air source till the air pressure in the three-necked bottle being 20Pa, setting the output power of the radio frequency power supply as 80W, adjusting the matcher, making the feed signal being 0, laminating the air in the three-necked bottle by the radio frequency power supply, discharging for 30 minutes after laminating the air to obtain noble metal catalyst.