Abstract: A method for safety exploitation and application of flammable ice, oxygen and hydrogen, measures for safety exploitation: first, a plurality of horizontal pipes bound together in a cubic form, or olivary structure containing horizontal pipes, or a plurality of vertical pipes bound together in a cubic form are put into the flammable ice mine to prevent collapse, second, a machine formed by millions of synchronously running two-with-one motors enters the unmanned environment, third, subjecting thick coal slurry to low electric ignition gasification process, and separation and purification process, and application of hydrogen and oxygen, fourth, seven innovated machines: A, high efficient power source machine powered by flammable ice, hydrogen, or oxygen, B, innovated two-with-one motor, C, innovated the cutting machine, D, innovated beating and rotating machine, E, low temperature electric ignition and gasification machine, F, high-speed centrifugal machine, G, propeller with two-with-one motor.