NOVELTY - A cubic palladium nano-particle nano-strip-shaped load six-membered ring product preparing method involves preparing six-membered ring compound as stabilizing agent and nano-catalyst as carrier. The six-membered ring compound is mixed with palladium metal precursor in deionized water at room temperature to obtain a mixture. The mixture is pre-heated in an oil bath, followed by controlling temperature to be stable to obtain light yellow turbid liquid-A, respectively preparing ascorbic acid aqueous solution and 1 mol/l potassium bromide aqueous solution.    USE - Method for preparing cubic palladium nano-particle nano-strip-shaped load six-membered ring product for use as anode catalyst of direct ethanol fuel cell.    ADVANTAGE - The method enables preparing cubic palladium nano-particle nano-strip-shaped load six-membered ring product with uniform particle size, one-dimensional distribution, uniform distribution, high catalytic activity and better stability.    DETAILED DESCRIPTION - A cubic palladium nano-particle nano-strip-shaped load six-membered ring product preparing method involves preparing six-membered ring compound as stabilizing agent and nano-catalyst as carrier. The six-membered ring compound is mixed with palladium metal precursor at a mol ratio of 1:1 in 10 ml deionized water at room temperature to obtain a mixture. The mixture is pre-heated in an oil bath at 60-80 degrees C, followed by controlling temperature to be stable to obtain light yellow turbid liquid-A, respectively preparing 2 mol/l ascorbic acid aqueous solution and 1 mol/l potassium bromide aqueous solution. The ascorbic acid aqueous solution and potassium bromide aqueous solution are mixed with reducing agent and liquid-A to obtain mixture-B. The mixture-B is cured at 60-80 degrees C and cooled naturally. The cooled mixture is centrifuged and mixed with ethanol and water at a volume ratio of 1:1, followed by repeatedly washing and centrifuging for 3 times. The resultant mixture is dried in an oven at 60 degrees C for 12 hours to obtain a finished product, where the palladium metal precursor is palladium chloride or palladium nitrate, the mole ratio of the ascorbic acid and metal precursor is 20:1, and the mole ratio of the potassium bromide and metal precursor is 1:1.